Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels
Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or sa...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Hill, D. J. T. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2007 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media, LLC 2007 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials science - Dordrecht : Springer Science + Business Media B.V, 1990, 18(2007), 6 vom: 01. Feb., Seite 1141-1149 |
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| Übergeordnetes Werk: |
volume:18 ; year:2007 ; number:6 ; day:01 ; month:02 ; pages:1141-1149 |
| Links: |
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| DOI / URN: |
10.1007/s10856-007-0135-0 |
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| Katalog-ID: |
SPR014480441 |
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| 100 | 1 | |a Hill, D. J. T. |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels |
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| 520 | |a Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. | ||
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| 650 | 4 | |a PHEMA Hydrogel |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Whittaker, A. K. |4 aut | |
| 700 | 1 | |a Lambert, L. |4 aut | |
| 700 | 1 | |a Chirila, T. V. |4 aut | |
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10.1007/s10856-007-0135-0 doi (DE-627)SPR014480441 (SPR)s10856-007-0135-0-e DE-627 ger DE-627 rakwb eng Hill, D. J. T. verfasserin aut Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Science+Business Media, LLC 2007 Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. HEMA (dpeaa)DE-He213 PHEMA (dpeaa)DE-He213 Hydroxyl Proton (dpeaa)DE-He213 Hydroxyl Oxygen Atom (dpeaa)DE-He213 PHEMA Hydrogel (dpeaa)DE-He213 Whittaker, A. K. aut Lambert, L. aut Chirila, T. V. aut Enthalten in Journal of materials science Dordrecht : Springer Science + Business Media B.V, 1990 18(2007), 6 vom: 01. Feb., Seite 1141-1149 (DE-627)317827316 (DE-600)2016995-4 1573-4838 nnns volume:18 year:2007 number:6 day:01 month:02 pages:1141-1149 https://dx.doi.org/10.1007/s10856-007-0135-0 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_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_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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 18 2007 6 01 02 1141-1149 |
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10.1007/s10856-007-0135-0 doi (DE-627)SPR014480441 (SPR)s10856-007-0135-0-e DE-627 ger DE-627 rakwb eng Hill, D. J. T. verfasserin aut Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Science+Business Media, LLC 2007 Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. HEMA (dpeaa)DE-He213 PHEMA (dpeaa)DE-He213 Hydroxyl Proton (dpeaa)DE-He213 Hydroxyl Oxygen Atom (dpeaa)DE-He213 PHEMA Hydrogel (dpeaa)DE-He213 Whittaker, A. K. aut Lambert, L. aut Chirila, T. V. aut Enthalten in Journal of materials science Dordrecht : Springer Science + Business Media B.V, 1990 18(2007), 6 vom: 01. Feb., Seite 1141-1149 (DE-627)317827316 (DE-600)2016995-4 1573-4838 nnns volume:18 year:2007 number:6 day:01 month:02 pages:1141-1149 https://dx.doi.org/10.1007/s10856-007-0135-0 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_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_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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 18 2007 6 01 02 1141-1149 |
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10.1007/s10856-007-0135-0 doi (DE-627)SPR014480441 (SPR)s10856-007-0135-0-e DE-627 ger DE-627 rakwb eng Hill, D. J. T. verfasserin aut Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Science+Business Media, LLC 2007 Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. HEMA (dpeaa)DE-He213 PHEMA (dpeaa)DE-He213 Hydroxyl Proton (dpeaa)DE-He213 Hydroxyl Oxygen Atom (dpeaa)DE-He213 PHEMA Hydrogel (dpeaa)DE-He213 Whittaker, A. K. aut Lambert, L. aut Chirila, T. V. aut Enthalten in Journal of materials science Dordrecht : Springer Science + Business Media B.V, 1990 18(2007), 6 vom: 01. Feb., Seite 1141-1149 (DE-627)317827316 (DE-600)2016995-4 1573-4838 nnns volume:18 year:2007 number:6 day:01 month:02 pages:1141-1149 https://dx.doi.org/10.1007/s10856-007-0135-0 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_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_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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 18 2007 6 01 02 1141-1149 |
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10.1007/s10856-007-0135-0 doi (DE-627)SPR014480441 (SPR)s10856-007-0135-0-e DE-627 ger DE-627 rakwb eng Hill, D. J. T. verfasserin aut Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Science+Business Media, LLC 2007 Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. HEMA (dpeaa)DE-He213 PHEMA (dpeaa)DE-He213 Hydroxyl Proton (dpeaa)DE-He213 Hydroxyl Oxygen Atom (dpeaa)DE-He213 PHEMA Hydrogel (dpeaa)DE-He213 Whittaker, A. K. aut Lambert, L. aut Chirila, T. V. aut Enthalten in Journal of materials science Dordrecht : Springer Science + Business Media B.V, 1990 18(2007), 6 vom: 01. Feb., Seite 1141-1149 (DE-627)317827316 (DE-600)2016995-4 1573-4838 nnns volume:18 year:2007 number:6 day:01 month:02 pages:1141-1149 https://dx.doi.org/10.1007/s10856-007-0135-0 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_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_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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 18 2007 6 01 02 1141-1149 |
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10.1007/s10856-007-0135-0 doi (DE-627)SPR014480441 (SPR)s10856-007-0135-0-e DE-627 ger DE-627 rakwb eng Hill, D. J. T. verfasserin aut Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Science+Business Media, LLC 2007 Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. HEMA (dpeaa)DE-He213 PHEMA (dpeaa)DE-He213 Hydroxyl Proton (dpeaa)DE-He213 Hydroxyl Oxygen Atom (dpeaa)DE-He213 PHEMA Hydrogel (dpeaa)DE-He213 Whittaker, A. K. aut Lambert, L. aut Chirila, T. V. aut Enthalten in Journal of materials science Dordrecht : Springer Science + Business Media B.V, 1990 18(2007), 6 vom: 01. Feb., Seite 1141-1149 (DE-627)317827316 (DE-600)2016995-4 1573-4838 nnns volume:18 year:2007 number:6 day:01 month:02 pages:1141-1149 https://dx.doi.org/10.1007/s10856-007-0135-0 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_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_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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 18 2007 6 01 02 1141-1149 |
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The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. 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Hill, D. J. T. misc HEMA misc PHEMA misc Hydroxyl Proton misc Hydroxyl Oxygen Atom misc PHEMA Hydrogel Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels |
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Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels HEMA (dpeaa)DE-He213 PHEMA (dpeaa)DE-He213 Hydroxyl Proton (dpeaa)DE-He213 Hydroxyl Oxygen Atom (dpeaa)DE-He213 PHEMA Hydrogel (dpeaa)DE-He213 |
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preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels |
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Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels |
| abstract |
Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. © Springer Science+Business Media, LLC 2007 |
| abstractGer |
Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. © Springer Science+Business Media, LLC 2007 |
| abstract_unstemmed |
Abstract An investigation of the preferential interaction of calcium ions with oxygen atoms in poly(2-hydroxyethyl methacrylate) (PHEMA)-based hydrogels has been carried out. The formation of polymer–Ca complexes was achieved by exposing powdered or fully hydrated samples with 5 mM, 0.1–0.5 M, or saturated $ CaCl_{2 } $solutions for certain periods of time. The characteristics of the polymer–Ca complexes were deduced from the effect of the solute on the equilibrium water content, and from NMR, atomic absorption and infrared spectroscopies. The absence of significant changes in the NMR chemical shift and infrared vibrational wavenumbers for the various functional groups confirmed that polymer complexation with $ Ca^{2+} $ ions involves only weak interactions, possibly electrostatic or ion–dipole interactions. Among the three types of oxygen atoms in PHEMA, hydroxyl oxygen atoms seem to be the most sensitive to the presence of $ Ca^{2+} $ ions. Complexation at the ester oxygen atoms was also evidenced by a new band in the infrared spectra at 1,550 $ cm^{-1} $. On the other hand, there were no indications that the hydrophobic domains in the backbone and the methyl groups at the side chain of PHEMA interact significantly with $ Ca^{2+} $ ions. © Springer Science+Business Media, LLC 2007 |
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Preferential interactions of calcium ions in poly(2-hydroxyethyl methacrylate) hydrogels |
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https://dx.doi.org/10.1007/s10856-007-0135-0 |
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Whittaker, A. K. Lambert, L. Chirila, T. V. |
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10.1007/s10856-007-0135-0 |
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2024-07-04T01:55:05.071Z |
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| score |
7.4002275 |