CIESC Journal ›› 2012, Vol. 20 ›› Issue (2): 246-253.

• 催化、动力学与反应器 • 上一篇    下一篇

羧基功能化聚乙二醇负载铂高效催化烯烃硅氢加成反应

白赢1,2, 彭家建2, 杨虎2, 厉嘉云2, 来国桥1,2, 李小年1   

  1. 1 State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou 310014, China 2 Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Nor-mal University, Hangzhou 310012, China
  • 收稿日期:2011-05-16 出版日期:2012-04-28 发布日期:2012-02-19

Functional polyethylene glycol with carboxyl-supported platinum as an efficient catalysis system for the hydrosilylation of alkenes

BAI Ying1,2, PENG Jia-Jian2, YANG Hu2, LI Jia-Yun2, LAI Guo-Qiao1,2, LI Xiao-Nian1   

  1. 1 State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou 310014, China 2 Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Nor-mal University, Hangzhou 310012, China
  • Received:2011-05-16 Online:2012-04-28 Published:2012-02-19

摘要： A series of carboxylated long chain polyethylene glycols (abbreviated as PEGCOOH) has been synthesized and used to support chloroplatinic acid. These supported catalysts were then tested for their efficiency in the hydrosilylation of alkenes. The factors affecting their catalytic properties, e.g. relative molecular mass of polyeth-ylene glycol, reaction temperature, platinum content, and type of alkenes, have been studied. It was found that the activity of the platinum catalyst decreased with increasing length of the polyethylene glycol chain, and increased with reaction temperature. Moreover, these catalysts could be reused several times without a noticeable decrease in activity or selectivity. The reaction pathway leading to excellent selectivity for the β-adduct of hydrosilylation of alkenes with triethoxysilane catalyzed by this catalysis system was discussed.

关键词: polyethylene glycol, modification, platinum, hydrosilylation, alkene

Abstract: A series of carboxylated long chain polyethylene glycols (abbreviated as PEGCOOH) has been synthesized and used to support chloroplatinic acid. These supported catalysts were then tested for their efficiency in the hydrosilylation of alkenes. The factors affecting their catalytic properties, e.g. relative molecular mass of polyeth-ylene glycol, reaction temperature, platinum content, and type of alkenes, have been studied. It was found that the activity of the platinum catalyst decreased with increasing length of the polyethylene glycol chain, and increased with reaction temperature. Moreover, these catalysts could be reused several times without a noticeable decrease in activity or selectivity. The reaction pathway leading to excellent selectivity for the β-adduct of hydrosilylation of alkenes with triethoxysilane catalyzed by this catalysis system was discussed.

Key words: polyethylene glycol, modification, platinum, hydrosilylation, alkene

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