| Waterborne Epoxy Resin Modified by AMPS |
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| 作者姓名： | MA Chcngyin DENG Cuiyan ZHENG Wcnji |
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| 作者单位： | School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
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| 摘 要： | A stable epoxy emulsion was prepared with epoxy resin （EP） as raw material, 2-acrylamido-2- methyl-l-propanesulfonic acid （AMPS） as modifier and benzoyl peroxide as initiator. By criterion of yield of the copolymer AMPS-EP, water-solubility, change of the acid value and intrinsic viscosity η] along with reaction time, the copolymerization course was deduced. It is found that during the process, AMPS takes part in both the grafting copolymerization with epoxy principal chain and the ring-opening polyaddition with epoxy group. It is also discovered that the yield of AMPS-EP and water dispersing varies with reaction time. When it reaches 1.5 h, AMPS-EP can obtain good water-solubility; but the water-solubility will go bad gradually if it exceeds 3.5 h.. R spectrum analysis indicates that partial epoxy group partially remains and the others create sulfonic ester.
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| 关 键 词： | 环氧树脂 2-丙烯酸脂-2-甲基-1-丙三羰基 共聚作用 环分加聚作用 |
| 收稿时间： | 2006-07-10 |
| 修稿时间： | 2007-04-14 |
Waterborne epoxy resin modified by AMPS |
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| MA Chcngyin DENG Cuiyan ZHENG Wcnji.Waterborne Epoxy Resin Modified by AMPS[J].Journal of Wuhan University of Technology. Materials Science Edition,2007,22(4):649-652. |
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| Authors: | Ma Chengyin Deng Cuiyan Zheng Wenji |
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| Affiliation: | (1) School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China |
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| Abstract: | A stable epoxy emulsion was prepared with epoxy resin (EP) as raw material, 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS)
as modifier and benzoyl peroxide as initiator. By criterion of yield of the copolymer AMPS-EP, water-solubility, change of
the acid value and intrinsic viscosity η] along with reaction time, the copolymerization course was deduced. It is found that during the process, AMPS takes part
in both the grafting copolymerization with epoxy principal chain and the ring-opening polyaddition with epoxy group. It is
also discovered that the yield of AMPS-EP and water dispersing varies with reaction time. When it reaches 1.5 h, AMPS-EP can
obtain good water-solubility; but the water-solubility will go bad gradually if it exceeds 3.5 h. IR spectrum analysis indicates
that partial epoxy group partially remains and the others create sulfonic ester. |
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| Keywords: | waterborne epoxy resin 2-acrylamido-2-methyl-1-propanesulfonic acid grafting copolymerization ring-opening polyaddition soap-free emulsion |
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