聚甲氧基硅氧烷及其功能化产物研究Ⅰ.制备

Studies of Polymethoxysiloxanes and its Functional Products Ⅰ.Preparation

摘要: 通过正硅酸甲酯(TMOS)在酸性条件下的部分水解缩合反应制备了不同分子量的聚甲氧基硅氧烷(PMOS)，详细讨论了水与TMOS的摩尔比(r)对PMOS结构和性能的影响。用丙烯酸-2-羟乙酯(HEA)通过酯交换反应使PMOS的部分甲氧基变为丙烯酰氧乙氧基，从而得到可进行热聚合或光聚合反应的功能化聚甲氧基硅氧烷PAMOS，讨论了影响酯交换反应的各种因素。

Abstract: Polymethoxysiloxanes (PMOS) with different molecular weight were prepared from partial hydrolytic condensation of tetramethoxysilane (TMOS) under acidic condition. The effects of the molar ratio T of water to TMOS were discussed particularly. Some methoxy