聚甲基倍半硅氧烷微球的制备  

Preparation of Polymethylsilsesquioxane Microspheres

作　　者：张迪[1] 尤小姿[1] 杨善志[1] 樊志国[1] 童锋[1] ZHANG Di;YOU Xiao-zi;YANG Shan-zhi;FAN Zhi-guo;TONG Feng(Zhejiang Xinan Chemical Industrial Group Co.,Ltd.,Hangzhou 311600,Zhejiang)

机构地区：[1]浙江新安化工集团股份有限公司,杭州311600

出　　处：《有机硅材料》2020年第2期47-50,共4页Silicone Material

摘　　要：以甲基三甲氧基硅烷为原料,通过水解-缩聚两步法合成了聚甲基倍半硅氧烷微球,考察了水解温度、水解反应pH值对聚甲基倍半硅氧烷微球粒径的影响,较佳反应条件为:水解温度5℃,体系pH值4~5。对产物进行红外光谱、粒径分析及微观形貌表征,证实产物为粒径小、分布窄、球形结构完整的硅树脂微球。Polymethylsilsesquioxane was synthesized with methyltrimethoxysilane as a raw material by two-step hydrolysis-condensation.The effects of reaction temperature and pH value on the particle size of the product were investigated.The preferred reaction conditions were as follows:the temperature was 5℃,and the pH value of the system was 4-5.The product was analyzed by infrared spectrum,particle size analysis and micro-morphology,and it was confirmed that the product was silicone resin microsphere,with small particle size,narrow distribution and complete spherical structure.

关 键 词：聚甲基倍半硅氧烷 水解-缩聚 球形结构 

分 类 号：TQ264.14[化学工程—有机化工]