摘要
聚烷氧基硅氧烷一般是由正硅酸甲酯或正硅酸乙酯水解缩聚制得。选择了反应活性小,水解速度较易控制的正硅酸乙酯,制备了稳定的聚乙氧基硅氧烷。简要介绍了正硅酸乙酯水解缩聚的反应机理,分析了水用量和催化剂用量对合成反应以及产物的影响。
Polyalkoxysiloxane is usually synthesized through hydrolyzation and polymerization reaction by using TMOS or TEOS as raw materials.TEOS was selected to synthetize the stabilized polyethoxysiloxane for low activity and hydrolysis rate can easily control.The reaction mechanism was introduced.Effects of the usages of water and catalyst on synthesis reaction and products were analyzed.
出处
《装备环境工程》
CAS
2011年第1期78-81,共4页
Equipment Environmental Engineering
基金
国家自然科学基金(50775163)
关键词
正硅酸乙酯
水解
缩聚
聚烷氧基硅氧烷
tetraethoxysilane
hydrolysis
polycondensate
polyalkoxysiloxane
