端羟烷基甲基苯基硅油的合成  

Synthesis of Hydroxyalkyl Terminated Polymethylphenylsiloxane

作　　者：陈存友 王庭慰[2] 

机构地区：[1]常州天晟新材料股份有限公司,江苏常州213018 [2]南京工业大学材料学院,南京210009

出　　处：《有机硅材料》2013年第2期92-96,共5页Silicone Material

摘　　要：以端氢基甲基苯基硅油和烯丙基缩水甘油醚为原料,在铂催化下通过硅氢加成反应制得端环氧基甲基苯基硅油;再在浓硫酸催化下,经甲醇醇解反应,得到端羟烷基甲基苯基硅油。研究了反应温度、反应时间、催化剂用量等对活性氢转化率的影响。结果表明,硅氢加成反应的最佳条件为:反应温度90℃,时间5 h,催化剂用量为反应物质量的0.015%,烯丙基缩水甘油醚中的CC与端氢基甲基苯基硅油中的Si—H的量之比为1.1∶1,此时,活性氢的转化率达94.87%;醇解反应的最佳反应时间为10 h。红外光谱与核磁共振光谱证实产物为端羟烷基甲基苯基硅油。Epoxy terminated methyl phenyl silicone fluid was prepared by the hydrosilylation of hydrogen terminated polymethylphenylsioxane and allyl glycidyl ether （AGE） with platinum as catalyst. Then the epoxy terminated methyl phenyl silicone fluid was reacted with methanol through methoxylation with concentrated sul- furic acid as the catalyst to produce hydroxyalkyl terminated polymethylphenylsiloxane. The optimal synthesis conditions were that the hydrosilylation was can-ied out at 90℃ for 5 hours with the catalyst at a mass fraction of 0. 015% of the reaction substance, and the molar ration of AGE to hydrogen terminated polymethylphenyl- sioxane of 1.1 ： 1.0, achieving the conversion yield of active hydrogen was 94. 87% and the optimal reaction time of the methoxylation was 10 hours. The structural determination by FTIR and I H NMR spectra showed that the hydroxyalkyl terminated polymethylphenylsiloxane was successfully prepared.

关 键 词：甲基苯基硅油 烯丙基缩水甘油醚 硅氢加成 醇解 甲醇 端氢基 羟烷基 

分 类 号：TQ324.21[化学工程—合成树脂塑料工业]