聚合负载三氯化镨配合物的合成、表征及催化活性  

Synthesis and catalytic activity of polymer-supported in praseodymium complexes

作　　者：李红玫[1] 刘迎春[2] 辛红[1] 李晓丽[1] 

机构地区：[1]长春师范学院化学系,吉林长春130032 [2]长春工程学院化学系,吉林长春130021

出　　处：《分子科学学报》2002年第4期211-215,共5页Journal of Molecular Science

基　　金：吉林省教育厅科技基金资助项目

摘　　要：　合成并表征了聚(苯乙烯(S)-丙烯酸(A))镨配合物(SAAC·Pr).红外光谱表明了它的配位结构.计算了共聚物中单体单元的序列分布.苯乙烯和丙烯酸单元长序列分布随其在共聚物中含量的增加而增加.当丙烯酸长序列分布高时,配合物的催化活性低.苯乙烯和丙烯酸的平均链长分别为 nS=3, nA=1时,配合物的催化活性最高.Poly(Styrene-acrylic acid)supported praseodymium complex(SAAC·Pr)has been synthesized and characterized.The infrared spectra of SAAC·Pr indicated the presence of bidentate carboxylate structure.The sequence distribution of the monomeric units in the complex has been calculated.The long sequences of styrene and acrylic acid increase with the increase of the monomer content in the copolymer.The longer the sequence of acrylic acid,the lower the catalytic activity of SAAC·Pr.The complex showed the highest activity when ratio of the number average sequence of styrene to that of acrylic acid was 3∶1.

关 键 词：聚合负载三氯化镨配合物 合成 表征 催化活性 序列分布 丁二烯 聚合 聚合物负载催化剂 

分 类 号：O632.12[理学—高分子化学] O643[理学—化学]