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.
出处
《精细石油化工》
CAS
CSCD
北大核心
2006年第2期11-14,共4页
Speciality Petrochemicals
关键词
聚醚改性硅油
硅氢化反应
含氢硅油
氯铂酸
polyether modified silicone
hydrosilation
hydrosilation of polyhydrosiloxane
hexachloroplatinic acid