硅氢反应合成有机硅蜡  

Preparation of Silicone Waxes by Hydrosilylation

作　　者：张建雨[1] 王文强[1] 唐芳珍[1] 胡景娜[1] 吕全海[1] 

机构地区：[1]华东理工大学能源化工系,上海200237

出　　处：《华东理工大学学报（自然科学版）》2008年第4期487-490,共4页Journal of East China University of Science and Technology

摘　　要：在铂络合物催化剂的作用下,以高碳数烯烃化合物和含氢硅油为原料,利用硅氢加成反应合成有机硅蜡。研究了原料配比、催化剂用量、反应时间、反应温度对Si—H键转化率和产物运动粘度的影响,确定最佳反应条件为:烯键与硅氢健摩尔比n(C=C)∶n(Si—H)=1.12∶1、铂催化剂用量3.2μg/g、反应温度130℃、反应时间8 h。并对合成产物的分子结构进行了红外、核磁表征,结果表明长链烷基已被接枝到聚硅氧烷主链中。Silicone waxes were hydrosilylated from polyhydrosiloxane and higher carbon olefin in the presence of platinum-based catalyst. The effects of factors, such as molar ratio of reactants, dosage of the catalyst, reaction time and temperature on Si H conversion rate and kinematical viscosity of products, were investigated as welt. The preferential experimental conditions were obtained as： the molar ratio of higher carbonolefin to Si-H is 1. 12 ： 1, the amounts of catalyst is 3. 2 μg/g, reaction time is 8 h, temperature is 130 ℃. The structure of the product was determined by FT IR and ^1H-NMR and the results indicated that the chain of polysiloxane and long chain alkyl grafted in the chain of polysiloxane.

关 键 词：硅氢反应 硅蜡 含氢硅油 铂催化剂 

分 类 号：TQ264.1[化学工程—有机化工]