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以二氧化硅为载体的侧链上含有配位基团和-COOH的聚硅氧烷(1-5)分别与氯铂酸反应制备了五种聚硅氧烷-铂络合物(“St-Pt-l”—“St-Pt-5”).这些高分子铂络合物,用于催化环氧丙基烯丙基醚与三甲及基氢硅烷反应具有很高的催化活性,在温和的条件下(80℃,30min),反应以72—98％的产率生成了硅烷偶联剂γ-(2,3-环氧丙氧基)丙基三甲氧基硅烷.通过对含,配位基的高分子铂络合物“Si-Pt-1”的稳定性研究,发现它可以重复使用多次而不降低其催化活性.
Five siloxane-platinum complexes (“St”) were prepared by reacting polysiloxanes (1-5) containing coordination groups and -COOH in the side chains supported on silica with chloroplatinic acid -Pt-1 “-” St-Pt-5 “). These high molecular platinum complexes, used to catalyze the reaction of epoxypropyl allyl ethers with trimethylsilyl and hydrosilanes, have high catalytic activity, (80 ℃, 30min), the reaction yielded a silane coupling agent γ- (2,3-epoxypropoxy) propyltrimethoxysilane at a yield of 72-98% Position of the polymer platinum complex ”Si-Pt-1" stability study found that it can be reused many times without reducing its catalytic activity.