| 不饱和聚酯/苯乙烯无皂乳液共聚合与聚合物微凝胶 |
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| 引用本文： | 袁才登,王艳君,许涌深,刘德华,柴艳娟,曹同玉.不饱和聚酯/苯乙烯无皂乳液共聚合与聚合物微凝胶[J].热固性树脂,2000,15(1):16-18. |
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| 作者姓名： | 袁才登 王艳君 许涌深 刘德华 柴艳娟 曹同玉 |
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| 作者单位： | 天津大学化工学院有机合成与高分子化工系,天津300072 |
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| 基金项目： | 天津市21世纪青年自然科学基金资助项目。 |
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| 摘 要： | 以羧基封端的不饱和聚酯（ＵＰ）和苯乙烯（Ｓｔ）为单体进行了无皂乳液共聚合，制备了聚合物微凝胶，提出了ＵＰ－Ｓｔ无皂乳液聚合的成核机理，讨论了ＰＨ值、ＵＰ／Ｓｔ等因素对体系稳定性和微凝胶产率的影响，该聚合物微凝胶能明显提高ＵＰ的冲击强度。
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| 关 键 词： | 不饱和聚酯 苯乙烯 无皂乳液聚合 聚合物微凝胶 |
EMULSIFIER--FREE EMULSION COPOLYMERIZATION OF UNSATURATED POLYESTER AND STYRENE AND THE POLYMER MICROGELS |
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| Yuan Caideng,Wang Yanjun,Xu Yongshen,Liu Dehua,Chai Yanjuan,Cao Tongyu.EMULSIFIER--FREE EMULSION COPOLYMERIZATION OF UNSATURATED POLYESTER AND STYRENE AND THE POLYMER MICROGELS[J].Thermosetting Resin,2000,15(1):16-18. |
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| Authors: | Yuan Caideng Wang Yanjun Xu Yongshen Liu Dehua Chai Yanjuan Cao Tongyu |
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| Affiliation: | Yuan Caideng
,Wang Yanjun
,Xu Yongshen
,Liu Dehua
,Chai Yanjuan
,Cao Tongyu
;(Department of Organic Symthesis and Chemistry Engineering of Polymer,College of Chemical Engineering and Technology , Tianjin University , Tianjin 300072) |
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| Abstract: | In this work, emulsifier-free emulsion copolymerization of unsaturated polyester with carboxyl end groups and styrene was carried out to prepare polymer microgels. The nucleation mechanism of UP-St emulsifier-free emulsion copolymerization was proposed. The effects of both pH and UP/St ratio on the stability of polymerization and the yield of polymer microgels were studied. The microgels prepared can be used to improve the impact strength of unsaturated polyesters markedly. |
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| Keywords: | Unsaturated polyesters Styrene Emulsifier-free emulsion polymerization Poly- mer microgels |
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