可聚合乳化剂在丙烯酸酯乳液聚合中的应用研究  

Applied research of polymerizable emulsifier in acrylic emulsion polymerization

作　　者：吕俊[1] 汪丽娟[1] 聂王焰[1] 周艺峰[1] 宋林勇[1] 

机构地区：[1]安徽大学化学化工学院,安徽省绿色高分子材料重点实验室,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2012年第5期92-96,共5页Journal of Anhui University(Natural Science Edition)

基　　金：安徽省绿色高分子材料重点实验室开放课题基金资助项目(KF2011006);安徽大学博士科研启动经费资助项目;安徽大学"211工程"三期建设学术创新团队经费资助项目

摘　　要：采用可聚合乳化剂烯丙氧基壬基酚聚氧乙烯(10)醚硫酸铵(DNS-86),通过种子预乳化半连续法合成丙烯酸酯乳液.考察了不同乳化剂体系、可聚合乳化剂DNS-86用量、引发剂(APS)用量、反应温度对乳液及涂膜性能的影响,并用FT-IR、TEM等对产物结构、形态进行了表征,获得了最佳反应条件.结果表明:使用可聚合乳化剂DNS-86能提高单体转化率,改善乳液的稳定性;随着DNS-86用量增加,涂膜的耐水性增加,力学性能提高.Polyacrylate emulsions were synthesized by seeding semi-continuous emulsion polymerization with the polymerizable emulsifier ammonium sulfate allyoxy nonylphonoxy poly（ethyleneoxy） （10） ether （DNS -86）. Effects of the type of surfactants, the amount of DNS-86, the amount of initiator and reactive temperature on the properties of the emulsion and films were discussed. The structure and morphology of products were characterized by FT-IR and TEM, obtaining the best synthesis condition. The results showed that the conversion rate of monomers was increased and polymerization stability was effectively improved by using polymerizable emulsifier DNS-86. The mechanical properties and water resistance of films were markedly improved with the increase of DNS-86 amount.

关 键 词：可聚合乳化剂 丙烯酸酯 乳液聚合 

分 类 号：TQ423.92[化学工程]