结构调节剂对锂系溶聚丁戊橡胶微观结构的影响  

Effect of polar regulators on microstructure of butadiene-isoprene rubber prepared by n-BuLi initiated solution polymerization

作　　者：李西美[1] 梁爱民[2] 王雪[2] 李伟[2] 卜少华[2] 关逸英[2] 

机构地区：[1]青岛科技大学,山东青岛266042 [2]中石化公司北京燕山分公司研究院,北京102500

出　　处：《弹性体》2004年第1期25-27,共3页China Elastomerics

摘　　要：以正丁基锂为引发剂,环己烷/己烷混合溶剂为溶剂,四氯化硅为偶联剂,THF(四氢呋喃)、ESM(乙二醇二基叔丁基醚)为极性调节剂,分别进行了均聚和丁二烯、异戊二烯共聚实验,研究了调节剂种类及用量对聚合物微观结构的影响。研究结果表明:改变调节剂的种类及用量,可改变聚合物中乙烯基结构含量;调节能力为ESM>>THF,反应得到无规共聚物。The polybutadiene,polyisoprene and butadiene-isoprene rubber were synthesized using n-BuLi as initiator,cyclohexane-hexane as solvent,THF,ESM as polar regulators and SiCl_4 as coupling agent.The effects of types and amount of polar regulators on the microstructure of polymers were studied.The results showed that the vinyl contents were changed when the types and amount of polar regulators were changed,the regulative ability aws ESM>>THF.Butadiene-isprene copolymer was irregular in copolymerization.

关 键 词：聚丁戊橡胶 结构调节剂 微观结构 阴离子聚合反应 

分 类 号：TQ333[化学工程—橡胶工业]