丙烯酸甲酯/乙烯基吡啶共聚物铑配合物的配体空间结构对甲醇羰基化反应催化性能的影响  

STUDIES ON THE CHARACTERISTICS OF THE COORDINATED UNITS OF METHYL ACRYLATE AND VINYL PYRIDINE COPOLYMER RHODIUM COMPLEXES AND THEIR INFLUENCE ON CATALYTIC PROPERTIES

作　　者：石秀丽[1] 余鼎声[1] 钱庆利[2] 邹瑾[2] 潘平来[2] 袁国卿[2] 邵守言[3] 凌晨[3] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]中国科学院化学研究所,北京100080 [3]江苏索普(集团)有限公司,镇江212006

出　　处：《高分子学报》2004年第2期219-222,共4页Acta Polymerica Sinica

摘　　要：针对共聚物配体聚合的随机性及其共聚结构单元的复杂性 ,运用XPS及红外光谱等分析手段 ,探讨了共聚物铑配合物微观结构对催化性能的影响 ;研究了丙烯酸甲酯 2 乙烯基吡啶和丙烯酸甲酯 4 乙烯基吡啶两种共聚物与铑的不同配比的配合物的活性 ,考察了相同配比的共聚物配合物结构单元、温度等因素对消化活性的影响 。By using X-ray photoelectron spectroscopy and IR spectroscopy, a series of coordination units of methyl acrylate (M) and 2-vinyl pyridine (V) copolymer rhodium complexes were studied in comparison with those of methyl acrylate (M) and 4-vinyl pyridine (V') copolymer rhodium complexes. The influence of the microstructures of their active centers and reaction temperature on their catalytic activity for methanol carbonylation was investigated by well-directed experiments. It has been found that the complexes containing methyl acrylate(M) and 2-vinyl pyridine (V) copolymer ligands exhibit much higher catalytic activity than those of methyl acrylate(M) and 4-vinyl pyridine (V') copolymer rhodium complexes on carbonylation of methanol. It is suggested that the 2-substituted vinyl pyridine possesses the favored catalytic microstructure for such reactions. These experimental observations provided theoretical and practical incentive to further investigation.

关 键 词：丙烯酸甲酯 乙烯吡啶 共聚物 铑配合物 配体空间结构 甲醇 羰基化反应 催化性能 催化剂 乙酸 

分 类 号：O641.4[理学—物理化学]