摘要
考察了Ｓｔ－ＢＡ－ＭＡＡ无皂乳液聚合反应不同时间转化率、聚合物的分子量、乳胶粒形态和粒径的变化。结果表明：当转化率达１％，Ｍ－ｎ达４．０９×１０４，初始乳胶粒子形成，主要为均相沉淀成核机理。羧基单体是影响乳胶粒形态重要因素之一。
The soapfree emulsion polymerization of StBAMAA was studied by sampling polymerization reactions at different times and determining the conversion,the molecular weight,particle morphology and diameter of latex particles.The results show that when the conversion excessed 1% and M-n values is 4.09×104,the particle nucleation is likely to yield primary particle via the mechanism of homogeneous coagulative nucleation;One of the important factors affecting the morphology of latex particles is carboxylic monomer.
出处
《太原理工大学学报》
CAS
1998年第4期390-392,共3页
Journal of Taiyuan University of Technology
关键词
苯乙烯
丙烯酸丁酯
甲基丙烯酸
无皂乳液聚合
styrene
butyl acrylate
methacrylic acid
soapfree emulsion polymerization
nucleation mechanism
