环氧化稀土异戊橡胶的制备与表征  

Preparation and characterization of epoxidized polyisoprene polymerized with rare earth catalyst system

作　　者：廖明义[1] 赵爽[1] 金美花[1] 孙伟[2] 李传清[2] 李洪泊[2] 梁爱民[2] 

机构地区：[1]大连海事大学交通运输装备与海洋工程学院,辽宁大连116026 [2]中国石油化工股份有限公司北京化工研究院燕山分院,北京102500

出　　处：《弹性体》2013年第3期13-15,34,共4页China Elastomerics

基　　金：大连市科技计划项目(2011A15GX027)

摘　　要：以过氧化氢为氧化剂,甲酸为催化剂对稀土异戊橡胶(Ln-IR)进行环氧化改性。采用核磁共振氢谱(1 H-NMR)对制备的环氧化Ln-IR的结构进行了表征,并进行了定量计算。结果表明,在反应温度40～60℃,反应时间2～5h,甲酸与过氧化氢物质的量的比约为1时,环氧化度较高且没有副反应发生。The epoxidation of rare earth isoprene（Ln-IR） rubber was investigated by using hydrogen peroxide and organic performic acid as epoxide agent and catalytic agent respectively.The structure of epoxidized Ln-IR was characterized by 1H-NMR.The results showed that when reaction temperature was 40~60 ℃,the reaction time was 2~5 h,the mole ratio of formic acid and hydrogen peroxide was about 1,the epoxidation could occur without side reaction and the high epoxy degree of Ln-IR can be obtained.

关 键 词：稀土异戊橡胶 环氧化 制备 表征 

分 类 号：TQ333.3[化学工程—橡胶工业]