聚ω-甲硒基十一烷基硅氧烷铂配合物的合成及其催化烯烃硅氢化性能  

Synthesis of Poly-ω-(Methylseleno)Undecylsiloxane Platinum Complex and Its Catalytic Hydrosilylation Behavior

作　　者：舒红群[1] 蔡明中[1] 

机构地区：[1]江西师范大学化学化工学院

出　　处：《江西师范大学学报（自然科学版）》2005年第3期199-202,共4页Journal of Jiangxi Normal University(Natural Science Edition)

基　　金：江西省自然科学基金资助项目(010307).

摘　　要：ω-氯代十一烷基三乙氧基硅烷依次用气相法二氧化硅固载、甲硒基钠硒化,再与氯亚铂酸钾作用,合成了聚ω-甲硒基十一烷基硅氧烷铂配合物.研究了该铂配合物对烯烃与三乙氧基硅烷的硅氢加成反应的催化特性.结果表明,当反应温度为80℃,催化剂用量为底物的万分之六时,该铂配合物对所用烯烃表现出很高的催化活性,且回收再用时其活性基本不变.<Abstrcat>A silica-supported poly-ω-(methylseleno)undecylsiloxane platinum complex was synthesized from ω-chloroundecyltriethoxysilane via immobilization on fumed silica, followed by reacting with sodium methylselenolate in ethanol and potassium chloroplatinite in acetone under Ar atmosphere. The catalytic properties of the platinum complex for hydrosilylation of olefins with triethoxysilane were investigated. The results showed that the title complex exhibited high catalytic activity for the hydrosilylation of olefins used with triethoxysilane when the reaction temperature was at 80 ℃ and the amount of the catalyst was 0.6 mol‰ of the alkene. This polymeric platinum complex can be reused several times without serious loss of activity.

关 键 词：铂配合物 硅氧烷 氢化性能 烯烃 烷基 合成 三乙氧基硅烷 气相法二氧化硅 硅氢加成反应 催化剂用量 催化特性 反应温度 催化活性 回收再用 活性基 固载 钠 钾 

分 类 号：O614.826[理学—无机化学] O627.413[理学—化学]