反式聚环戊烯橡胶合成及结构分析  

Synthesis and structure analysis of trans-polycyclopentene rubber

作　　者：贺小进[1,2] 邱迎昕 王雪[1,2] 曹达鹏 陈建军[1,2] 卜少华[1,2] 罗俊杰 HE XiaoJin;QIU YingXin;WANG Xue;CAO DaPeng;CHEN JianJun;BU ShaoHua;LUO JunJie(Yanshan Branch,Beijing Research Institute of Chemical Industry,Sinopec,Beijing 102500;National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials,Sinopec,Beijing 102500;College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]中国石化北京化工研究院燕山分院,北京102500 [2]中国石化橡塑新型材料合成国家工程研究中心,北京102500 [3]北京化工大学化学工程学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2020年第4期45-51,共7页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：对反式聚环戊烯橡胶(TPR)的合成进行实验研究,确定了催化剂制备及TPR合成工艺条件,对合成的TPR结构进行表征,结果表明:催化剂陈化后具有较高的活性及稳定性,甲苯及正己烷作为环戊烯聚合溶剂均有较好的效果。当催化剂WCl 6用量(相对于环戊烯的质量)为(2.5~3.5)×10^-6 mol/g,分子量调节剂与W物质的量的比为2~3,Al与W的物质的量比为1~3时,单体转化率大于78%,TPR反式结构含量(质量分数)约为85%,玻璃化转变温度小于-92℃,数均相对分子质量在10万~30万之间,相对分子量分布在1.5~2.5之间,满足通用胶的结构及分子量要求。The synthesis of trans-polycyclopentene rubber(TPR)has been studied and the effects of varying the preparation of the tungsten-based catalyst and the polymerization conditions were investigated.The catalyst exhibited high activity and stability after aging.Toluene and n-hexane were suitable solvents for cyclopentene polymerization.When the catalyst loading was(2.5-3.5)×10^-6 molW/g monomer,the molar ratio of molecular weight regulator(n-butene)/W was 2-3 and the triisobutyl-aluminium/W ratio was 1-3,the monomer conversion rate reached a maximum of 78%,the TPR trans-structure content was about 85%,the glass transition temperature was lower than-92℃,the number average molecular weight was in the range 100000-300000 and the relative molecular mass distribution was in the range 1.5-2.5.These meet the structure and molecular weight requirements for rubber for general.

关 键 词：反式聚环戊烯橡胶 催化剂 陈化 活化剂 分子量调节剂 

分 类 号：TQ333.99[化学工程—橡胶工业]