异辛酸铁/三异丁基铝/亚磷酸二乙酯催化丁二烯-异戊二烯共聚合  

Budadiene-isoprene copolymerization catalyzed with iron 2-ethylhexanoate/trilsobutylaluminum/diethyl phosphate catalytic system

作　　者：卢春颖 郑文洁[2] 胡雁鸣[2] 张明[1] 刘俊亮[1] 张学全[2] 

机构地区：[1]扬州大学化学化工学院,江苏扬州225009 [2]中国科学院长春应用化学研究所合成橡胶重点实验室,长春130022

出　　处：《合成橡胶工业》2017年第5期335-339,共5页China Synthetic Rubber Industry

基　　金：国家重点基础研究发展计划资助项目(2015654702)

摘　　要：以异辛酸铁(简称Fe)/三异丁基铝(简称Al)/亚磷酸二乙酯(DEP)为催化剂催化丁二烯(Bd)与异戊二烯(Ip)共聚,考察了Al用量、DEP用量及单体配比对Bd-Ip共聚合的影响。结果表明,由Fe/Al/DEP组成的催化剂可在己烷中于50℃下催化Bd与Ip共聚,共聚物收率随Al和DEP用量的增加后下降。当Al/Fe(摩尔比)为10、DEP/Fe(摩尔比)为2时,共聚物收率最高为82.9%。当Al/Fe较低时,共聚物仅有1个玻璃化转变温度,为无规共聚物。The copolymerization of butadiene （Bd） and isoprene （Ip） was catalyzed with iron 2- ethylhexanoate （ simplified as Fe） / triisobuty-lalumi- num （ simplified as A1）/diethyl phosphate （ DEP ） catalytic system. The effects of amount of A1 and DEP and monomer ratio on the copolymerization were investigated. The results showed that Bd/Ip co- polymerization in hexane could be catalyzed by Fe/ A1/DEP catalytic system at 50℃ in hexane, and the yield of the copolymerization increased firstly and then decreased with increasing amount of A1 and DEP. The highest yield of the copolymer was 82.9% when the mole ratio of A1/Fe was 10 and DEP/Fe was 2. When the mole ratio of A1/Fe was lower, the copolymer had a single glass transition temperature which indicated it was random copolymer.

关 键 词：异辛酸铁 烷基铝 亚磷酸二乙酯 丁二烯 异戊二烯 共聚 微观结构 

分 类 号：TQ330.1[化学工程—橡胶工业]