聚异丁烯丁二酸酐的合成及影响因素分析  

Synthesis of Polyisobutylene Succinic Anhydride and Analysis of Its Influencing Factors

作　　者：习锟 刘思斌 孙绍飞 叶军 王浩 XI Kun;LIU Si-bin;SUN Shao-fei;YE Jun;WANG Hao(Gezhouba Yipuli Hubei Changtai Civil Explosive Co.,Ltd.,Yichang 443100,China)

机构地区：[1]葛洲坝易普力湖北昌泰民爆有限公司,湖北宜昌443100

出　　处：《化工管理》2021年第32期26-28,共3页Chemical Engineering Management

摘　　要：以高活性聚异丁烯(PIB)、马来酸酐(MA)为原料,采用热加合法制备出聚异丁烯丁二酸酐。研究了反应温度、反应时间、反应物料配比以及搅拌速率对反应产物酸值的影响。筛选出了最佳工艺条件为:选用数均分子量为1000的高活性聚异丁烯为原料,反应温度为200℃,反应时间为7 h,马来酸酐与聚异丁烯的物质的量比为2.3∶1,搅拌速率为350 r/min。在最佳工艺条件下合成的聚异丁烯丁二酸酐酸值达到84.2 mgKOH/g。采用FT-IR和NMR对产物结构进行了表征。Using highly active polyisobutylene(PIB)and maleic anhydride(MA)as raw materials,polyisobutylene succinic anhydride is prepared by thermal addition.The effects of reaction temperature,reaction time,reaction material ratio and stirring rate on the acid value of the reaction product were studied.The optimal process conditions were screened out as follows:select high-reactive polyisobutylene with a number average molecular weight of 1000 as the raw material,reaction temperature of 200℃,reaction time of 7 h,and the mass ratio of maleic anhydride to polyisobutylene of 2.3∶1.The stirring rate is 350 r/min.The acid value of polyisobutylene succinic anhydride synthesized under the optimal process conditions reached 84.2 mgKOH/g.The structure of the product was characterized by FT-IR and NMR.

关 键 词：高活性聚异丁烯 马来酸酐 热加合 聚异丁烯丁二酸酐 

分 类 号：TQ560[化学工程—炸药化工]