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Indexed by:期刊论文

Date of Publication:2008-09-01

Journal:POLYMERS FOR ADVANCED TECHNOLOGIES

Included Journals:SCIE、EI、Scopus

Volume:19

Issue:9

Page Number:1164-1167

ISSN No.:1042-7147

Key Words:polymerizable surfactants; emulsion polymerization; stabilities; films

Abstract: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.