侧链聚醚改性硅油的制备  

SYNTHESIS OF SIDE-CHAIN POLYETHER MODIFIED SILICONES

作　　者：李小瑞[1] 郭飞鸽[1] 

机构地区：[1]陕西科技大学轻化工材料与设计研究所,陕西咸阳712081

出　　处：《精细石油化工》2006年第2期11-14,共4页Speciality Petrochemicals

摘　　要：以甲苯为溶剂、氯铂酸为催化剂,含氢硅油与烯丙基聚醚经硅氢化反应合成了聚醚改性硅油。通过测定Si—H键的残留量考察了催化剂的用量,原料配比,溶剂用量,反应时间及反应温度对反应转化率和产物色泽的影响,较适宜的反应条件为：n(含氢硅油)：n(烯丙基聚醚)=1：1．2,催化剂用量为20μg/g,反应时间为5 h,温度为120℃,甲苯的用量为反应物质量的30%。The side-chain polyether modified silicone was synthesized by hydrosilation of polyhydrosiloxane and allyl polyether in the presence of hexachloroplatinic acid. The effects of the concentration of catalyst , the mol ratio of reactants, the content of solvent, the reaction time and temperature on the conversion were investigated. The optimal experimental conditions was obtained as follows： the tool ratio of polyhydrosiloxane to allyl polyether 1.2 ： 1, the weight concentration of Pt 20μg/g, the concentration of solvent 30%, 120 ℃ and 5 h.

关 键 词：聚醚改性硅油 硅氢化反应 含氢硅油 氯铂酸 

分 类 号：O627.41[理学—有机化学]