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Research on Poly(styrene-acrylic Acid)-supported Neodymium Complex in Catalytic Copolymerization of Styrene and 4-Vinylpyridine by Ruizhan CHEN; Xiaoli LI; Xiaoju WANG; Yonghong ZHANG; Lun ZHAO is a Materials Science article available to read on EtoBox.

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The catalytic activity of poly(styrene-acrylic acid) (PSAA) supported neodymium chloride (NdCl 3 ) complex for the copolymerization of styrene and 4-Vinylpyridine was studied. The influence of various factors, such as Al/Nd molar ratio, reaction time, macromolecular carrier (PSAA), and ratio of styrene to 4-vinypyridine (g/g), on the copolymerization yield of styrene and 4-Vinylpyridine was investigated. The results showed that the copolymerization of polar monomers with olefins occurred efficiently and the catalytic activity of polymer-supported catalyst was higher than that of the similar small molecular catalysts. The activity of PSAA•Nd complex increased with increasing Al/Nd molar ratios and decreased with increasing polymerization time. The highest activity of PSAA•Nd was observed at 120 min, and the highest yield was found at the ratio of styrene to 4-vinylpyridine of 4:2. DSC analysis presented that the resulted polymer had only one glass transition temperature, and showed very good thermal stability.

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Author

Ruizhan CHEN; Xiaoli LI; Xiaoju WANG; Yonghong ZHANG; Lun ZHAO

Publisher

Elsevier Science; Elsevier ; The Metallurgical Industry Press; Elsevier BV (ISSN 1002-0721)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)