硅氢加成合成环氧改性聚硅氧烷的研究

doi:10.19491/j.issn.1001-9278.2011.10.005

中国塑料 ›› 2011, Vol. 25 ›› Issue (10): 24-27 .DOI: 10.19491/j.issn.1001-9278.2011.10.005

硅氢加成合成环氧改性聚硅氧烷的研究

张院萍杨祥

中国地质大学（武汉）材料科学与化学工程学院

收稿日期:2011-06-13 修回日期:1900-01-01 出版日期:2011-10-26 发布日期:2011-10-26

Synthesis of Epoxy-modified Polysiloxane by Hydrosilylation Reaction

ZHANG Yuanping YANG Xiang

Received:2011-06-13 Revised:1900-01-01 Online:2011-10-26 Published:2011-10-26
Contact: ZHANG Yuanping

摘要/Abstract

摘要： 以含氢环体（HMCS）和烯丙基缩水甘油醚（AGE）为原料在铂催化剂的作用下，通过硅氢加成反应合成了环氧改性聚硅氧烷。利用红外光谱和核磁共振光谱对加成产物结构进行了表征。采用化学滴定法测定了未反应活性氢的质量分数，从而确定了HMCS中活性氢的转化率。讨论了反应温度、反应时间、催化剂用量及原料配比等对活性氢转化率的影响。确定的最佳反应条件为：反应温度为85 ℃、反应时间6 h、铂催化剂用量为5 mg/L、AGE与HMCS摩尔比为1.2/1，此时活性氢的转化率为87.5 %。

关键词: 含氢环体, 烯丙基缩水甘油醚, 硅氢加成反应, 环氧改性聚硅氧烷

Abstract: Epoxy-modified polysiloxane was prepared by hydrosilylation reaction of hydromethylcyclosiloxane (HMCS) and allyl glycidyl ether (AGE) using isopropanol solution of H2PtCl6 as a catalyst. The products were characterized using Fourier transform infrared spectrometer and nuclear magnetic resonance spectra. The effects of reaction temperature, reaction time, catalyst dosage, and molar ratio of HMCS/AGE on conversion ratio of reactive hydrogen were discussed. It showed that the optimal reaction conditions were reaction temperature of 85 ℃, reaction time of 6 h, catalyst dosage of 5 mg/L, and molar ratio of AGE/HMCS of 1.2/1. The conversion rate of reactive hydrogen was 87.5 %.

Key words: hydromethylcyclosiloxane, allyl glycidyl ether, hydrosilylation reaction, epoxy-modified polysiloxane

张院萍杨祥. 硅氢加成合成环氧改性聚硅氧烷的研究[J]. 中国塑料, 2011, 25(10): 24-27 .

ZHANG Yuanping YANG Xiang. Synthesis of Epoxy-modified Polysiloxane by Hydrosilylation Reaction[J]. China Plastics, 2011, 25(10): 24-27 .

硅氢加成合成环氧改性聚硅氧烷的研究

Synthesis of Epoxy-modified Polysiloxane by Hydrosilylation Reaction

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