【摘要】 通过2-(甲氧羰基)丙基甲基二氟硅烷(A)与2-(乙酰氧基)乙基甲基二氯硅烷(B)的共水解缩聚反应,得到含酯基的聚硅氧烷(C)。将(C)与三乙醇胺(D)反应,经酯交换,β-消除和交联等步骤,合成了含(D)链节的多孔性聚硅氧烷树脂(TEASR)。采用N、Si元素分析和红外光谱表征了这类树脂的结构,并测定它们的一些物性。(TEASR)对热、酸和有机溶剂稳定;具有选择性地吸附过渡金属离子的性能。更多还原

【Abstract】 Polysiloxanes(C) containing ester groups were obtained by cohydrolysis of 2-(carbomethoxy)propyl methyl dichlorosilane(A) and 2-(acetoxy)ethyl methyl dichlorosilane(B). Porous polysiloxane resins(TEASR) containing triethanolamine chain element were prepared by the reaction of (C) with triethanolamine, through reactions of ester exchanges, β-elimination and crosslink. (TEASR) have been characterized by IR and N、Si element analysis; physical properties were determined. The experimental results showed that (TEASR) are stable to heat, acid and organic solvents. This type of resins have selective sorption to transition metal ions.更多还原