SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (2): 246-253.

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Functional Polyethylene Glycol with Carboxyl-supported Platinum as an Efficient Catalysis System for the Hydrosilylation of Alkenes

BAI Ying1,2, PENG Jiajian2, YANG Hu2, LI Jiayun2, LAI Guoqiao1,2, LI Xiaonian1   

  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 Revised:2012-02-19 Online:2012-05-02 Published:2012-04-28
  • Supported by:
    Supported by the Educational Commission of Zhejiang Province of China (Y201017419);Zhejiang Province Program(2008C14041)

Functional Polyethylene Glycol with Carboxyl-supported Platinum as an Efficient Catalysis System for the Hydrosilylation of Alkenes

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
  • 通讯作者: LAI Guoqiao;LI Xiaonian
  • 基金资助:
    Supported by the Educational Commission of Zhejiang Province of China (Y201017419);Zhejiang Province Program(2008C14041)

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 polyethylene 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

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 polyethylene 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