交联聚苯乙烯－铂铬合物的合成及其催化的硅氢加成反应

Synthesis of Crosslinked Polystyrene Supported Platinum Complexes and Their Catalytic Properties for Hydrosilylation

首次合成了巯甲基化交联聚苯乙烯－铂络合物，将其用于催化不同结构的碳碳不饱和化合物与甲基二氯硅烷的加成反应，结果表明，该催化剂对乙炔、苯乙烯、苯乙炔、三烷基乙烯基硅烷等化合物具有很高的催化活性，对丙烯酸丁酯的催化活性显著降低，对甲基丙烯酸甲酯则无催化活性，该催化剂用于苯乙烯的硅氢加成反应，可重复使用２０次，而且回收再用非常方便．

Mercaptomethylated and crosslinked polystyrene supported platinum complexes were synthesized and used for hydrosilylation as the catalyst, and they have a high activity in hydrosilylation of olefines and acetylenes with dichloromethylsilane(DCMS),particularly for compounds with one conjugated substituent such as styrene, phenyl acetylene and trialkyl vinyl silanes. Hydrosilylation activity is obviously reduced for compounds with electron acceptor groups adjacent to double bond as butyl acrylate, and they have no activity for methyl methacrylate. These catalysts have a good reusability.