以乙基二氯化铝和水为引发体系合成溶液法丁基橡胶

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以乙基二氯化铝和水为引发体系合成溶液法丁基橡胶
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【英文篇名】 Synthesis of butyl rubber by solution polymerization using water/ethyl aluminium dichloride as initiation system
! P# C5 p# l9 ^6 p" b  e, ?0 ]【作者中文名】 张杰; 李树新; 郭文莉; 伍一波; 金玉顺; 商育伟;
【作者英文名】 Zhang Jie1; 2; Li Shuxin2; Guo Wenli2; Wu Yibo2; Jin Yushun2; Shang Yuwei2（1.College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029; China; 2.Department of Materials Science and Engineering; Beijing Institute of Petrochemical Technology; Beijing 102617; China）;
【作者单位】 北京化工大学材料科学与工程学院; 北京石油化工学院材料科学与工程系;
【文献出处】 合成橡胶工业, China Synthetic Rubber Industry, 编辑部邮箱 2011年 01期  
, P+ h, ?2 k9 M期刊荣誉：中文核心期刊要目总览  ASPT来源刊  中国期刊方阵  CJFD收录刊
$ P; F$ k. k: E) J1 {【关键词】 丁基橡胶; 溶液法; 正离子聚合; 乙基二氯化铝;
3 E; V' f8 Q4 q( @8 }$ }8 [1 L% S【英文关键词】 butyl rubber; solution method; cationic polymerization; ethyl aluminium dichloride;
【摘要】 以乙基二氯化铝和水为引发体系,己烷和氯甲烷为溶剂,在-80℃下通过溶液法合成了丁基橡胶,研究了引发体系在不同陈化时间下的红外光谱特征,考察了引发剂和单体用量对丁基橡胶相对分子质量及其分布、不饱和度及单体转化率的影响。结果表明,引发体系活性中心的红外特征峰在580 cm-1和610 cm-1处,并随着陈化时间的延长,580 cm-1处的红外吸光度先增大后减小,相应的单体转化率与红外吸光度的变化保持一致。丁基橡胶的相对分子质量先减小后增大。引发剂用量以其与单体的摩尔比为0.047%~0.066%较为适宜;单体用量不宜过大,以占聚合体系总质量的20%~27%为宜。
0 H: v- _( z4 L0 m0 G【英文摘要】 Butyl rubber(IIR) was synthesized by solution polymerization using water/ethyl aluminium dichloride as initiation system in chloromethane/hexane mixture solution at-80 ℃,the characteristic infrared spectra of initiation system at different aging time were measured,and the effects of the amount of initiator and monomers concentration on relative molecular mass and its distribution,unsaturation degree and monomer conversion were investigated in detail.The experimental results showed that there were two charac