高乙烯基聚丁二烯橡胶和乳聚丁苯橡胶的交叉复分解反应（英文）  

Cross metathesis reaction between high vinyl polybutadiene rubber and emulsion-polymerized styrene-butadiene rubber

作　　者：华静[1] 胡程鹏[1] 张彬彬 赵煊 

机构地区：[1]青岛科技大学,橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《合成橡胶工业》2017年第5期402-402,共1页China Synthetic Rubber Industry

基　　金：Supported by Natural Science Foundation of Shandong Province(ZR 2016 EMM 03)

摘　　要：采用Grubbs-Ⅱ(G 2)催化剂催化高乙烯基聚丁二烯橡胶(HVBR)和乳聚丁苯橡胶(ESBR)进行烯烃的交叉复分解反应,并研究了G 2的用量对相对分子质量及玻璃化转变温度(T_g)的影响。结果表明,HVBR和ESBR的分子链内和分子链间发生一定程度的交叉互换,制备出不同链段的线型和含支链的丁苯橡胶。随着G 2用量的增加,数均分子量先增加后变小,相对分子质量分布先变窄后变宽。与未采用G 2作催化剂的试样相比,G 2的加入使得HVBR链段的T_g下降,ESBR链段的T_g上升。To deal with EU Labeling Act, the structure design of rubber material for tire become very important. Integrated rubber has an excellent comprehensive performance through the different structural unit assemble into one molecular chain by anionic polymerization, which is com- plicated by adding different monomers in different period of time. In this study, we prepared a kind of integrated rubber by cross metathesis reaction between high vinyl polybutadiene rubber（HVBR） and emulsion-polymerized styrene-butadiene rubber （ ESBR）, through the ex- change of the chain segment by C=C in backbone and side groups alone or between the rubber chains.

关 键 词：高乙烯基聚丁二烯橡胶 乳聚丁苯橡胶 交叉复分解反应 嵌段共聚物 支化聚合物 

分 类 号：TQ330.1[化学工程—橡胶工业]