Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion
In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm t...
Ausführliche Beschreibung
Autor*in: |
Aly, Kamal I. [verfasserIn] Mohamed, Mohamed Gamal [verfasserIn] Younis, Osama [verfasserIn] Mahross, Mahmoud H. [verfasserIn] Abdel-Hakim, Mohamed [verfasserIn] Sayed, Marwa M. [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2019 |
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Übergeordnetes Werk: |
Enthalten in: Progress in organic coatings - Amsterdam [u.a.] : Elsevier Science, 1972, 138 |
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Übergeordnetes Werk: |
volume:138 |
DOI / URN: |
10.1016/j.porgcoat.2019.105385 |
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Katalog-ID: |
ELV003242099 |
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520 | |a In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. | ||
650 | 4 | |a Polybenzoxazine | |
650 | 4 | |a Thermal curing polymerization | |
650 | 4 | |a Polybenzoxazine coating | |
650 | 4 | |a Corrosion inhibitors | |
700 | 1 | |a Mohamed, Mohamed Gamal |e verfasserin |0 (orcid)0000-0003-0301-8372 |4 aut | |
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700 | 1 | |a Sayed, Marwa M. |e verfasserin |4 aut | |
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10.1016/j.porgcoat.2019.105385 doi (DE-627)ELV003242099 (ELSEVIER)S0300-9440(19)30955-5 DE-627 ger DE-627 rda eng 540 DE-600 52.78 bkl Aly, Kamal I. verfasserin aut Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. Polybenzoxazine Thermal curing polymerization Polybenzoxazine coating Corrosion inhibitors Mohamed, Mohamed Gamal verfasserin (orcid)0000-0003-0301-8372 aut Younis, Osama verfasserin (orcid)0000-0001-9822-0228 aut Mahross, Mahmoud H. verfasserin aut Abdel-Hakim, Mohamed verfasserin aut Sayed, Marwa M. verfasserin aut Enthalten in Progress in organic coatings Amsterdam [u.a.] : Elsevier Science, 1972 138 Online-Ressource (DE-627)320530647 (DE-600)2015714-9 (DE-576)25948492X nnns volume:138 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 52.78 Oberflächentechnik Wärmebehandlung AR 138 |
spelling |
10.1016/j.porgcoat.2019.105385 doi (DE-627)ELV003242099 (ELSEVIER)S0300-9440(19)30955-5 DE-627 ger DE-627 rda eng 540 DE-600 52.78 bkl Aly, Kamal I. verfasserin aut Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. Polybenzoxazine Thermal curing polymerization Polybenzoxazine coating Corrosion inhibitors Mohamed, Mohamed Gamal verfasserin (orcid)0000-0003-0301-8372 aut Younis, Osama verfasserin (orcid)0000-0001-9822-0228 aut Mahross, Mahmoud H. verfasserin aut Abdel-Hakim, Mohamed verfasserin aut Sayed, Marwa M. verfasserin aut Enthalten in Progress in organic coatings Amsterdam [u.a.] : Elsevier Science, 1972 138 Online-Ressource (DE-627)320530647 (DE-600)2015714-9 (DE-576)25948492X nnns volume:138 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 52.78 Oberflächentechnik Wärmebehandlung AR 138 |
allfields_unstemmed |
10.1016/j.porgcoat.2019.105385 doi (DE-627)ELV003242099 (ELSEVIER)S0300-9440(19)30955-5 DE-627 ger DE-627 rda eng 540 DE-600 52.78 bkl Aly, Kamal I. verfasserin aut Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. Polybenzoxazine Thermal curing polymerization Polybenzoxazine coating Corrosion inhibitors Mohamed, Mohamed Gamal verfasserin (orcid)0000-0003-0301-8372 aut Younis, Osama verfasserin (orcid)0000-0001-9822-0228 aut Mahross, Mahmoud H. verfasserin aut Abdel-Hakim, Mohamed verfasserin aut Sayed, Marwa M. verfasserin aut Enthalten in Progress in organic coatings Amsterdam [u.a.] : Elsevier Science, 1972 138 Online-Ressource (DE-627)320530647 (DE-600)2015714-9 (DE-576)25948492X nnns volume:138 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 52.78 Oberflächentechnik Wärmebehandlung AR 138 |
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10.1016/j.porgcoat.2019.105385 doi (DE-627)ELV003242099 (ELSEVIER)S0300-9440(19)30955-5 DE-627 ger DE-627 rda eng 540 DE-600 52.78 bkl Aly, Kamal I. verfasserin aut Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. Polybenzoxazine Thermal curing polymerization Polybenzoxazine coating Corrosion inhibitors Mohamed, Mohamed Gamal verfasserin (orcid)0000-0003-0301-8372 aut Younis, Osama verfasserin (orcid)0000-0001-9822-0228 aut Mahross, Mahmoud H. verfasserin aut Abdel-Hakim, Mohamed verfasserin aut Sayed, Marwa M. verfasserin aut Enthalten in Progress in organic coatings Amsterdam [u.a.] : Elsevier Science, 1972 138 Online-Ressource (DE-627)320530647 (DE-600)2015714-9 (DE-576)25948492X nnns volume:138 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 52.78 Oberflächentechnik Wärmebehandlung AR 138 |
allfieldsSound |
10.1016/j.porgcoat.2019.105385 doi (DE-627)ELV003242099 (ELSEVIER)S0300-9440(19)30955-5 DE-627 ger DE-627 rda eng 540 DE-600 52.78 bkl Aly, Kamal I. verfasserin aut Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. Polybenzoxazine Thermal curing polymerization Polybenzoxazine coating Corrosion inhibitors Mohamed, Mohamed Gamal verfasserin (orcid)0000-0003-0301-8372 aut Younis, Osama verfasserin (orcid)0000-0001-9822-0228 aut Mahross, Mahmoud H. verfasserin aut Abdel-Hakim, Mohamed verfasserin aut Sayed, Marwa M. verfasserin aut Enthalten in Progress in organic coatings Amsterdam [u.a.] : Elsevier Science, 1972 138 Online-Ressource (DE-627)320530647 (DE-600)2015714-9 (DE-576)25948492X nnns volume:138 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 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_4338 GBV_ILN_4393 52.78 Oberflächentechnik Wärmebehandlung AR 138 |
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Aly, Kamal I. @@aut@@ Mohamed, Mohamed Gamal @@aut@@ Younis, Osama @@aut@@ Mahross, Mahmoud H. @@aut@@ Abdel-Hakim, Mohamed @@aut@@ Sayed, Marwa M. @@aut@@ |
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Aly, Kamal I. |
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Aly, Kamal I. ddc 540 bkl 52.78 misc Polybenzoxazine misc Thermal curing polymerization misc Polybenzoxazine coating misc Corrosion inhibitors Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion |
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540 DE-600 52.78 bkl Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion Polybenzoxazine Thermal curing polymerization Polybenzoxazine coating Corrosion inhibitors |
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Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion |
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Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion |
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salicylaldehyde azine-functionalized polybenzoxazine: synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion |
title_auth |
Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion |
abstract |
In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. |
abstractGer |
In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. |
abstract_unstemmed |
In this work, we have successfully designed a new simple salicylaldehyde azine-functionalized benzoxazine (Azine-BZ−CH3) monomer via Mannich condensation reaction of 1,2-bis(2,4-dihydroxybenzylidene)hydrazine and paraformaldehyde with p-toluidine. FT-IR and NMR spectroscopy were carried to confirm the chemical structure of Azine-BZ−CH3. Based on DSC analyses, our BZ monomer showed the lowest maximum exothermic peak (237 °C) compared with 3-phenyl-3,4-dihydro-2H-benzooxazine monomer (263 °C), which ascribed to the basic characteristics of phenolic groups (OH) and the presence of the azine group in the benzoxazine monomer. Furthermore, the anticorrosion behavior of mild steel electrodes coated by Azine-BZ−CH3, poly(Azine-BZ−CH3), poly(Azine-BZ−CH3)/nanoclay and poly(Azine-BZ−CH3)/ E-SBO (epoxidized soybean) and E-bpc (epoxy resin of bisphenol-C) exposed to 1.0 M H2SO4 aqueous solution is studied by the potentiodynamic polarization. The results show decrease in both anodic and cathodic slopes of Tafel plots of the used inhibitors than a mild steel bar exposed to acidic media to indicate that these inhibitors act as mixed type inhibitors. Moreover, these inhibitors can be used as hybrid inhibitors where the anode and cathode slope of their Tafel curves used were lower than those of mild steel exposed to acidic media. In addition, the mild steel coated by epoxy E-SBO with poly(Azine-BZ−CH3)/nanoclay has more efficient corrosion protection (99.63%) than other used inhibitors. SEM images also confirmed that the protective layer of that inhibitor on the mild steel surface retards the corrosion when the electrodes are exposed to acidic media. |
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Salicylaldehyde azine-functionalized polybenzoxazine: Synthesis, characterization, and its nanocomposites as coatings for inhibiting the mild steel corrosion |
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score |
7.400569 |