摘要
以α-溴代异丁酸叔丁酯为引发剂,二乙烯苯为支化单体,苯乙烯为共聚单体,经原子转移自由基聚合原位生成自引发单体合成支化共聚物。用核磁共振法、凝胶渗透色谱法、三角激光散射法分别对聚合过程和聚合物进行了表征。结果表明:由于苯乙烯的引入,反应体系的交联得到了很好的控制,所得聚合物为支化结构。
The authors studied the situ via atom transfer radical self-condensing vinyl copolymerization of styrene and inimer which is formed inpolymerization with divinylbenzene as branching monomer in the presence of 2- bromoisobutyl-tert-butyrate as initiator. Proton nuclear magnetic resonance （1H-NMR） spectroscopy and gel permeation chromatography （GPC） coupled with tri-angle laser light scattering （MALLS） were used to monitor the polymerization process and characterize the resultant polymers. The results indicate that the introduction of styrene helps perfectly control the crosslinking degree of the reaction system and make the polymer possess branched structure.
出处
《合成树脂及塑料》
EI
CAS
北大核心
2008年第5期52-54,共3页
China Synthetic Resin and Plastics
基金
国家自然科学基金(20574032)
关键词
支化聚合物
原子转移自由基聚合
二乙烯苯
branched polymer
atom transfer radical polymerization
divinylbenzene
