ETE作调节剂高温合成丁二烯/苯乙烯橡胶的反应动力学  

Copolymerization Kinetics of Synthesis of Styrene and Butadiene Rubber Using Tetrahydrofufuryethylether as a Polar Modifier Under the High Temperature

作　　者：陶晓伟[1,2] 廖明义[2] 刘贵昌[1] 闫冰[3] 吕万树[3] 邰峰[3] 梁爱民[3] 

机构地区：[1]大连理工大学化工学院化学工程系,辽宁大连116024 [2]大连海事大学交通与物流工程学院材料系,辽宁大连116026 [3]中国石化北京燕山石化分公司研究院,北京102550

出　　处：《高分子材料科学与工程》2010年第1期29-32,共4页Polymer Materials Science & Engineering

摘　　要：以正丁基锂为引发剂、乙基四氢糠基醚(ETE)为调节剂、环己烷为溶剂,采用高温负离子聚合工艺合成了丁二烯(Bd)/苯乙烯(St)橡胶。研究了聚合温度、ETE/Li比和引发剂浓度等因素对聚合反应动力学的影响。结果表明,ETE是溶聚丁苯橡胶(SSER)合成中有效的高温调节剂,在高温下仍然具有很好的活性,能够显著加快共聚合反应速率,调节单体Bd和St的聚合速率,同时对反应动力学参数进行了研究。The butadiene/styrene rubber （SSBR） was synthesized with n-butyllithium as initiator, tetrahydrofufuryethylether （ETE） as polar modifier, cyclohexane/hexane as solvent by the high temperature polymerization technology. The effect of polymerization temperature, ETE/Li molar ratio and initiator concentration on the copolymerization kinetics of styrene and butadiene was investigated. The results show that ETE is a very effective polar modifier for SSBR synthesis by using the high temperature polymerization technology, it displays nice activity under the high temperature. EWE obviously increases the rate of copolymerization and adjustes the rate of Bd and St polymerization. The polymerization kinetics parameters were analyzed and investigated also.

关 键 词：乙基四氢糠基醚 溶聚丁苯橡胶 高温聚合 动力学 

分 类 号：TQ314.254[化学工程—高聚物工业]