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论文类型：期刊论文
发表时间：2008-09-01
发表刊物：POLYMERS FOR ADVANCED TECHNOLOGIES
收录刊物：SCIE、EI、Scopus
卷号：19
期号：9
页面范围：1164-1167
ISSN号：1042-7147
关键字：polymerizable surfactants; emulsion polymerization; stabilities; films
摘要：A series of polymerization surfactants (surfmers) was synthesized, whose structures combined the characteristics of polyoxyethylene as nonionic group and quaternary ammonium a as cationic group. The structures of the product were confirmed by MS, and the content of cationic-activity matter was determined by two-phase titration. The surfmers were then used with constant addition profiles in semicontinuous polymerization of vinyl acetate-butyl acrylate-Veova 10-hexafluorobutyl methacrylate, and the polydispersity indexes (PDI) were lower than 0.1. The particle size, amount of coagulum, and stability against electrolyte and freeze/thaw were evaluated. As a reference, an unreactive surfactant cetyl trimethyl ammonium bromide (CTAB) was also used for the polymerization. Compared to CTAB, the surfmers behaved much better. Not only stabilities to electrolyte and water resistance were improved, but also freeze/thaw stability got a superior performance. Copyright (C) 2008 John Wiley & Sons, Ltd.