摘要
论述了近期开发的丁基橡胶及聚异丁烯类弹性体新品种及其性能。采用改进型引发体系合成高二烯烃结合量的丁基橡胶;加入适宜交联剂组分以提高丁基橡胶生胶强度及弹性,改善其制品的尺寸稳定性;采用多官能团引发剂制取双峰分子量分布的丁基橡胶;在聚合过程加入支化剂制取星形支化丁基橡胶;以对甲基苯乙烯取代异戊二烯为第2单体的异丁烯共聚物和异丁烯/异戊二烯/苯乙烯类三元共聚物及其溴化物的合成、特性及应用。
The new kinds of butyl rubber and polyisobutylene-based elastomer developed recently were discussed, such as high-isoprene unit content butyl rubber prepared with new initiating systems in the presence of weakly nucleophillic counter anions, bimodal molecular weight distribution type butyl rub-ber synthesized with multifunctional group initiators, high hardness butyl rubber and the new classes of copolymer of isobutylene/p-methylstyrene and ter-polymer of isobutylene/isoprene/styrenic monomer. And it was also discussed that rheological behavior of the butyl rubbers can be regulated by adding some suitable crosslinking agent during the polymerization process.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
2013年第3期167-171,共5页
China Synthetic Rubber Industry
