含氨基酸侧链的有机硅高分子催化剂——Ⅺ.聚γ-(组氨酸基)丙基硅氧烷钯催化剂的合成及其催化加氢活性  

STUDY OF POLYSILOXANE WITH AMINO ACID SIDE CHAIN SUPPORTED CATALYSTS——Ⅺ.The Synthesis,Hydrogenation Activity and Structural Characterization of Poly-γ-(Histidine)propylsiloxane palladium Catalysts

作　　者：刘基万[1] 游江[1] 王西新[1] 

机构地区：[1]武汉大学化学系

出　　处：《武汉大学学报（自然科学版）》1993年第1期37-41,共5页Journal of Wuhan University(Natural Science Edition)

基　　金：国家基金委员会资助项目

摘　　要：报道了SiO_2负载的聚γ-(组氨酸基)丙基硅氧烷钯催化剂的合成、催化加氢活性及其结构表征.结果表明,标题催化剂对不同底物均有高的催化加氢活性,当N/Pd摩尔比为6.1∶1时,催化丙烯腈的起始加氢速度高达5910 mL H_2/min·mmol Pd.不同溶剂对催化剂的活性有很大影响.This paper is concerned with the synthesis of poly-γ-(histidine)propylsioxane palladium catalysts in different N/Pd mol ratioes and the study on its hydrogenation activity for olefins and nitrobenzene. The structural characterization of the catalyst indicates that the activity center may be complex com- pound composed of both the oxygen and nitrogen atoms of histidine ligand and PdCl_2. For a lot of sub- trates,the hydrogenation activity of the title catalysts is high. The initial absorption hydrogen rate of acrylonitrile is high up to 5910 mLH_2/min·mmolPd when the N/Pd ratio is 6. 1. Besides, the influ- ence of various solvents on the rates of hydrogenation absorption make a world of difference.

关 键 词：高分子催化剂 有机硅 氨基酸 

分 类 号：O634.41[理学—高分子化学]