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Microwave radiation copolymerization in solid state of maleic anhydride and allylthiourea

โœ Scribed by Jianmei Lu; Xiulin Zhu; Shunjun Ji; Jian Zhu; Zaixin Chen

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
111 KB
Volume
68
Category
Article
ISSN
0021-8995

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โœฆ Synopsis

Microwave radiation copolymerization of maleic anhydride and allylthiourea was studied in solid state. Composition of the monomer feed and the power and time of microwave radiation on conversion and intrinsic viscosity were discussed. Reactivity ratios for maleic anhydride and allylthiourea were also determined. Values of r 1 and r 2 were 0.875 and 0.650 for maleic anhydride and allylthiourea, respectively. The copolymer can be used as soluble macromolecular complexing agents for metal ions.

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## Abstract The copolymerization of styrene (St) and maleic anhydride (MA) was carried out in supercritical carbon dioxide (SC CO~2~). It was found that St and MA are easy to copolymerize in SC CO~2~ and the conversion can reach 97%, and that very fine and dry powders are obtained. The products wer