In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method
Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ma, Long [verfasserIn] Yang, Yang [verfasserIn] He, Chengyong [verfasserIn] Jia, Zhenxing [verfasserIn] Liu, Xiangyang [verfasserIn] Qin, Jiaqiang [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Colloid & polymer science - Berlin : Springer, 1906, 293(2015), 4 vom: 17. Feb., Seite 1281-1287 |
|---|---|
| Übergeordnetes Werk: |
volume:293 ; year:2015 ; number:4 ; day:17 ; month:02 ; pages:1281-1287 |
| Links: |
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| DOI / URN: |
10.1007/s00396-015-3527-6 |
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| Katalog-ID: |
SPR004947509 |
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| 520 | |a Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. | ||
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| 650 | 4 | |a Inverse aqueous emulsion |7 (dpeaa)DE-He213 | |
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| 700 | 1 | |a He, Chengyong |e verfasserin |4 aut | |
| 700 | 1 | |a Jia, Zhenxing |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Xiangyang |e verfasserin |4 aut | |
| 700 | 1 | |a Qin, Jiaqiang |e verfasserin |4 aut | |
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10.1007/s00396-015-3527-6 doi (DE-627)SPR004947509 (SPR)s00396-015-3527-6-e DE-627 ger DE-627 rakwb eng 540 ASE 540 ASE 35.18 bkl Ma, Long verfasserin aut In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. PI/SiO (dpeaa)DE-He213 hybrid hemisphere (dpeaa)DE-He213 Porous (dpeaa)DE-He213 Inverse aqueous emulsion (dpeaa)DE-He213 Sol-gel (dpeaa)DE-He213 Yang, Yang verfasserin aut He, Chengyong verfasserin aut Jia, Zhenxing verfasserin aut Liu, Xiangyang verfasserin aut Qin, Jiaqiang verfasserin aut Enthalten in Colloid & polymer science Berlin : Springer, 1906 293(2015), 4 vom: 17. Feb., Seite 1281-1287 (DE-627)254629849 (DE-600)1462029-7 1435-1536 nnns volume:293 year:2015 number:4 day:17 month:02 pages:1281-1287 https://dx.doi.org/10.1007/s00396-015-3527-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.18 ASE AR 293 2015 4 17 02 1281-1287 |
| spelling |
10.1007/s00396-015-3527-6 doi (DE-627)SPR004947509 (SPR)s00396-015-3527-6-e DE-627 ger DE-627 rakwb eng 540 ASE 540 ASE 35.18 bkl Ma, Long verfasserin aut In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. PI/SiO (dpeaa)DE-He213 hybrid hemisphere (dpeaa)DE-He213 Porous (dpeaa)DE-He213 Inverse aqueous emulsion (dpeaa)DE-He213 Sol-gel (dpeaa)DE-He213 Yang, Yang verfasserin aut He, Chengyong verfasserin aut Jia, Zhenxing verfasserin aut Liu, Xiangyang verfasserin aut Qin, Jiaqiang verfasserin aut Enthalten in Colloid & polymer science Berlin : Springer, 1906 293(2015), 4 vom: 17. Feb., Seite 1281-1287 (DE-627)254629849 (DE-600)1462029-7 1435-1536 nnns volume:293 year:2015 number:4 day:17 month:02 pages:1281-1287 https://dx.doi.org/10.1007/s00396-015-3527-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.18 ASE AR 293 2015 4 17 02 1281-1287 |
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10.1007/s00396-015-3527-6 doi (DE-627)SPR004947509 (SPR)s00396-015-3527-6-e DE-627 ger DE-627 rakwb eng 540 ASE 540 ASE 35.18 bkl Ma, Long verfasserin aut In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. PI/SiO (dpeaa)DE-He213 hybrid hemisphere (dpeaa)DE-He213 Porous (dpeaa)DE-He213 Inverse aqueous emulsion (dpeaa)DE-He213 Sol-gel (dpeaa)DE-He213 Yang, Yang verfasserin aut He, Chengyong verfasserin aut Jia, Zhenxing verfasserin aut Liu, Xiangyang verfasserin aut Qin, Jiaqiang verfasserin aut Enthalten in Colloid & polymer science Berlin : Springer, 1906 293(2015), 4 vom: 17. Feb., Seite 1281-1287 (DE-627)254629849 (DE-600)1462029-7 1435-1536 nnns volume:293 year:2015 number:4 day:17 month:02 pages:1281-1287 https://dx.doi.org/10.1007/s00396-015-3527-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.18 ASE AR 293 2015 4 17 02 1281-1287 |
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10.1007/s00396-015-3527-6 doi (DE-627)SPR004947509 (SPR)s00396-015-3527-6-e DE-627 ger DE-627 rakwb eng 540 ASE 540 ASE 35.18 bkl Ma, Long verfasserin aut In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. PI/SiO (dpeaa)DE-He213 hybrid hemisphere (dpeaa)DE-He213 Porous (dpeaa)DE-He213 Inverse aqueous emulsion (dpeaa)DE-He213 Sol-gel (dpeaa)DE-He213 Yang, Yang verfasserin aut He, Chengyong verfasserin aut Jia, Zhenxing verfasserin aut Liu, Xiangyang verfasserin aut Qin, Jiaqiang verfasserin aut Enthalten in Colloid & polymer science Berlin : Springer, 1906 293(2015), 4 vom: 17. Feb., Seite 1281-1287 (DE-627)254629849 (DE-600)1462029-7 1435-1536 nnns volume:293 year:2015 number:4 day:17 month:02 pages:1281-1287 https://dx.doi.org/10.1007/s00396-015-3527-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.18 ASE AR 293 2015 4 17 02 1281-1287 |
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10.1007/s00396-015-3527-6 doi (DE-627)SPR004947509 (SPR)s00396-015-3527-6-e DE-627 ger DE-627 rakwb eng 540 ASE 540 ASE 35.18 bkl Ma, Long verfasserin aut In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. PI/SiO (dpeaa)DE-He213 hybrid hemisphere (dpeaa)DE-He213 Porous (dpeaa)DE-He213 Inverse aqueous emulsion (dpeaa)DE-He213 Sol-gel (dpeaa)DE-He213 Yang, Yang verfasserin aut He, Chengyong verfasserin aut Jia, Zhenxing verfasserin aut Liu, Xiangyang verfasserin aut Qin, Jiaqiang verfasserin aut Enthalten in Colloid & polymer science Berlin : Springer, 1906 293(2015), 4 vom: 17. Feb., Seite 1281-1287 (DE-627)254629849 (DE-600)1462029-7 1435-1536 nnns volume:293 year:2015 number:4 day:17 month:02 pages:1281-1287 https://dx.doi.org/10.1007/s00396-015-3527-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.18 ASE AR 293 2015 4 17 02 1281-1287 |
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Enthalten in Colloid & polymer science 293(2015), 4 vom: 17. Feb., Seite 1281-1287 volume:293 year:2015 number:4 day:17 month:02 pages:1281-1287 |
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PI/SiO hybrid hemisphere Porous Inverse aqueous emulsion Sol-gel |
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Ma, Long @@aut@@ Yang, Yang @@aut@@ He, Chengyong @@aut@@ Jia, Zhenxing @@aut@@ Liu, Xiangyang @@aut@@ Qin, Jiaqiang @@aut@@ |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR004947509</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230519080143.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201001s2015 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s00396-015-3527-6</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR004947509</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s00396-015-3527-6-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">540</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">540</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">35.18</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Ma, Long</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2015</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. 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Feb., Seite 1281-1287</subfield><subfield code="w">(DE-627)254629849</subfield><subfield code="w">(DE-600)1462029-7</subfield><subfield code="x">1435-1536</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:293</subfield><subfield code="g">year:2015</subfield><subfield code="g">number:4</subfield><subfield code="g">day:17</subfield><subfield code="g">month:02</subfield><subfield code="g">pages:1281-1287</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://dx.doi.org/10.1007/s00396-015-3527-6</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_SPRINGER</subfield></datafield><datafield 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Ma, Long |
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Ma, Long ddc 540 bkl 35.18 misc PI/SiO misc hybrid hemisphere misc Porous misc Inverse aqueous emulsion misc Sol-gel In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method |
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540 ASE 35.18 bkl In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method PI/SiO (dpeaa)DE-He213 hybrid hemisphere (dpeaa)DE-He213 Porous (dpeaa)DE-He213 Inverse aqueous emulsion (dpeaa)DE-He213 Sol-gel (dpeaa)DE-He213 |
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ddc 540 bkl 35.18 misc PI/SiO misc hybrid hemisphere misc Porous misc Inverse aqueous emulsion misc Sol-gel |
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In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method |
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Ma, Long Yang, Yang He, Chengyong Jia, Zhenxing Liu, Xiangyang Qin, Jiaqiang |
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in situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method |
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In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method |
| abstract |
Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. |
| abstractGer |
Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. |
| abstract_unstemmed |
Abstract In this paper, micron-scale polyimide/nano-silica (PI/nano-$ SiO_{2} $) composite hemispheres were fabricated by employing inverse aqueous emulsion technique and sol-gel method. Homogeneous inverse emulsion was obtained through using the precursor solution as dispersed phase which contained poly(amic acid) ammonium salt (PAAS), tetraethyl orthosilicate (TEOS) and deionized water, liquid paraffin (LP) as continuous phase, and Span80 as surfactant. The PI/$ SiO_{2} $ hybrid hemispheres could be got by adding excess dehydrating agent into the emulsion. The Fourier transform infrared (FT-IR) results demonstrated that PAAS had been converted to polyimide (PI) after adding the dehydrating agent into the emulsion and that the success of the reaction between TEOS molecules. The research showed that the morphologies of PI/$ SiO_{2} $ hybrid hemispheres, compared with the pure PI hemispheres, were still hemispherical and did not change with the varied silica contents. The surfaces of these samples were without clear interface between the $ SiO_{2} $ particles and the polymer matrix. And, the SEM images of the hybrid hemispheres after hydrofluoric acid (HF) etching or high temperature calcination showed that the $ SiO_{2} $ particles were well dispersed in the organic component, and the diameter of silica particles was nano-scale. The EDX results of the spheres which were after etching in hydrofluoric acid solution or after calcination showed that some 99.98 % of the silica particles were removed and the success of the removal of the organic component, respectively. Furthermore, thermal gravimetric analysis (TGA) results showed that the thermal stability of PI hemispheres could be improved by incorporating the inorganic component. |
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In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method |
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| score |
7.400769 |