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

作　　者：邱玮丽[1] 马晓华[1] 杨清河[1] 付延鲍[1] 宗祥福[1] 

机构地区：[1]复旦大学材料科学系,上海200433

出　　处：《功能高分子学报》2003年第4期456-462,共7页Journal of Functional Polymers

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。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 methoxyl groups in PMOS were substituted through ester exchange reaction with hydroxyethyl acrylate (HEA). Then functional polymethoxysiloxanes (PAMOS) were obtained, in which these were some acrylate groups and it could be crosslinked by heat or ultraviolet: The factors of ester exchange reaction were also discussed.

关 键 词：聚甲氧基硅氧烷 功能化产物 制备 酯交换反应 缩合反应 正硅酸甲酯 涂料 

分 类 号：O634.41[理学—高分子化学] TQ630[理学—化学]