星形支化丁基橡胶的合成及研究  

SYNTHESIS AND STUDY OF STAR-BRANCHED BUTYL RUBBER

作　　者：宋改云[1] 蓝林立[1] 李树新[2] 郭文莉[2] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]北京石油化工学院,北京102617

出　　处：《高分子材料科学与工程》2005年第2期135-138,共4页Polymer Materials Science & Engineering

摘　　要：研究了采用含双键的低分子量聚合物接枝剂合成星形支化丁基橡胶。考察了接枝剂的加入方式、浓度和加入时间对星形支化丁基橡胶分子质量及分子质量分布的影响,研究了合成星形支化丁基橡胶的适宜反应条件,提出了合成星形支化丁基橡胶的反应机理。This paper studied the effect of branched agent--unsaturated polymer with low molecular weight on synthesis of star-branched butyl rubber. Mainly adding ways, concentration and adding time of branched agent were studied. By the Comparison of GPC traces and IR between IIR and SBB, it is found that the preferable reaction conditions of synthesizing star-branched butyl rubber. The mechanism of synthesizing star-branched butyl rubber was put forward.

关 键 词：丁基橡胶 星形支化丁基橡胶 接枝剂 聚丁二烯 

分 类 号：TQ333.6[化学工程—橡胶工业]