摘要
采用异戊二烯聚合-二乙烯基苯（DVB）偶联-再引发丁二烯/苯乙烯聚合的方法合成了具有星形杂臂结构的异戊二烯-丁二烯/苯乙烯橡胶（s-ISBR）。结果表明,DVB偶联效率可达60%,通过调节DVB用量可将臂数控制在2.6～6.1。采用四氢呋喃（THF）、1,1,4,7,7-五甲基二乙烯基三胺（PMDETA）或其复合体系可将3.4-PI,1.2-PB摩尔分数分别控制在8%～29%和11%～65%。s-ISBR具有较高的撕裂强度和低的滚动阻力。
The integral rubber possesses optimal overall performance . Further researches showed some performances could be obviously improved by decreasing numbers of non-crosslinking free ends through crosslinking , such as low rolling resistance and heat accumulation. Here divinyl benzene （DVB） was used to prepare star-shaped miktoarm isoprene-styrene/butadlene rubber（s-ISBR）. The basic anionic polymerization reactions are presented in the reaction scheme 1.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
2008年第3期233-233,共1页
China Synthetic Rubber Industry
基金
Supported by China National Petroleum Corpora-tion(06-04 A-02-1-02).
