Research on Poly(Styrene-Crylicacid)-Suported Neodymium Complex Catalytic Copolymerization of Styrene and 4-Vinylpyridine  

作　　者：Chen Ruizhan Li Xiaoli Wu Xinjun Wang Xiaoju Zhao Lun 

机构地区：[1]College of Chemistry, Changchun Normal College, Changehun 130032, China

出　　处：《Journal of Rare Earths》2005年第6期684-684,共1页稀土学报（英文版）

摘　　要：The catalytic activity of poly（styrene-cryli- caeid） （PSAA） supported neodymium chloride （NdCl3） complex for the copolymerization of styrene and 4-vinylpyridine was studied. The influence of various factors, such as Al/Nd molar ratio, reaction time, and ratio of styrene to 4-vinypyridine （g· g^-1 ）, on copolymerization of styrene and 4-Vinylpridine was investigated. The results show that the copolymerization of polar monomers with olefins occurs efficiently. The catalytic activity of polymer-supported catalyst is higher than that of the similar small molecule catalysts. The activity of PSAA· Nd complex increases with increasing Al/Nd ratios and decreases with increasing polymerization time, the highest activity of PSAA· Nd is observed at 120 min. High yield is found at the ratio of styrene to 4-vinylpyridine is 4：2. The resulted polymer shows very good thermal stability.The catalytic activity of poly（styrene-cryli- caeid） （PSAA） supported neodymium chloride （NdCl3） complex for the copolymerization of styrene and 4-vinylpyridine was studied. The influence of various factors, such as Al/Nd molar ratio, reaction time, and ratio of styrene to 4-vinypyridine （g· g^-1 ）, on copolymerization of styrene and 4-Vinylpridine was investigated. The results show that the copolymerization of polar monomers with olefins occurs efficiently. The catalytic activity of polymer-supported catalyst is higher than that of the similar small molecule catalysts. The activity of PSAA· Nd complex increases with increasing Al/Nd ratios and decreases with increasing polymerization time, the highest activity of PSAA· Nd is observed at 120 min. High yield is found at the ratio of styrene to 4-vinylpyridine is 4：2. The resulted polymer shows very good thermal stability.

关 键 词：rare earth catalyst STYRENE 4-VINYLPYRIDINE polar monomer COPOLYMERIZATION rare earths 

分 类 号：TQ325[化学工程—合成树脂塑料工业] O631.5[理学—高分子化学]