光散射法研究丙烯酸十八酯和苯乙烯微乳液共聚机理  

Particle Nucleation during the Microemulsion Co-polymerization of Acrylic Octadecyl Ester and Styrene by Laser Light Scattering Method

作　　者：朱卫忠[1] 李干佐[1] 郑立强[1] 刘少杰[1] 水玲玲[1] 梁好均[2] 吴奇[2] 

机构地区：[1]山东大学教育部胶体与界面化学重点实验室,济南250100 [2]中国科学技术大学化学院,合肥230026

出　　处：《化学学报》2001年第1期1-5,共5页Acta Chimica Sinica

基　　金：国家自然科学基金 ( 2 99730 2 3)资助项目

摘　　要：在十六烷基溴化吡啶 /叔丁醇 / 15 %丙烯酸十八酯和苯乙烯 /水体系的O/W微乳液中 ,使用动态光散射法 ,研究其中两种单体共聚反应的成核机理 .结果表明 ,聚合过程中乳胶粒成核位置主要在增溶胶束的单体微珠中 。The phase behavior of the system of cetylpyridine bromide/t - butanol/15 % (acrylic octadecyl ester and styrene)/water was measure at 25.4 degreesC. The kinetic of the acrylic octadecyl ester and styrene co - polymerization in O/W microemulsion system for cetyl pyridine bromide/t - butanol/15% [acrylic octadecyl ester and styrene (1:2.5)]/water was studied by LLS method. The mechanism of nucleation of latex particles is discussed. The most possible nucleation locations of the acrylic octadecyl ester and styrene latex particles are solulization micelles and monomer microdrops.

关 键 词：动态光散射 O/W微乳液 微乳液聚合 增溶胶束 聚合机理 丙烯酸十八酯 苯乙烯 

分 类 号：TQ316.3[化学工程—高聚物工业]