【摘要】 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.更多还原

【Abstract】 Five new polysiloxane-platinum complexes ("Si-Pt-1" - "Si-Pt-5") have been prepared by reaction of chloroplatinic acid with various silica-supported polysiloxanes(1-5) bearing ligand group CHC6H4N(CH3)2, CHC6H4OH, - N(OC-CH3)2,-CN and - COOH. It was found that these polymer platinum complexes are very efficient catalysts for the hydrosilylation of allyl glycidyl ether by trimet-hoxysilane. Under mild conditions (80℃,30min), the catalyzed reaction produced a silane coupling agent, γ-glycidoxypropyltrimethoxysilane, in a high yield (72 - 98℃).The stability of the polymer platinum complex "Si-Pt-1" containing CHC6H4N(CH2) ligand group has been investigated. It has shown that the catalyst can be reused many times without appreciable decrease in catalytic activity.更多还原