【摘要】 通过β—（甲氧羧基）—丙基甲基二氯硅烷（A）[MeSiCH₂CHMeCOOMeCl₂)和β—（乙酰氧基）—乙基甲基二氯硅烷（B）[MeSiCH₂CH₂O₂MeCl₂]的共水解,得到含酯基的聚硅氧烷（C）;将（C）经酯基皂化后,在酸或碱的催化下,使（B）链节发生β—消除和交联反应,首先得到多孔性的含羧基的聚硅氧烷树脂。实验结果表明,这类树脂对热以及酸和有机溶剂是稳定的。已测定它们对Ca²⁺、Cu²⁺、Fe³⁺、Hg²⁺等离子的吸附能力,一般其吸附容量随树脂中羧基含量的增加而增加。更多还原

【Abstract】 Polysiloxanes (C) containing ester groups were synthesized by cohydrolysis of Ⅱ- (carbomethoxy) propyl methyl dichlorosilane (A) and Ⅱ- (acetoxyl) ethyi methyl dichlorosilane (B) . After saponification of the ester groups in (C) , in the presence of an acid or a base catalysis, porous polysiloxane resins containing carboxy groups were prepared by reactions of Ⅱ-elimination and cross-link of chain element of (B) . The results indicated that, these resins are stable to heat, acid and solvents; and the sorption capacities of these resins for Cu2+ , Ca2+ ,Fe3+, Hg2+ and so on were determined.In general, the sorption capacity was in creased with the increasing of carboxy group content of resin.更多还原