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Copolymerization with depropagation: Experiments and prediction of kinetics and properties of α-methylstyrene/methyl methacrylate copolymers. I. Solution copolymerization

✍ Scribed by F. Martinet; J. Guillot

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 401 KB
Volume: 65
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19970919)65:12<2297::aid-app5>3.0.co;2-4

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✦ Synopsis

a-Methylstyrene ( a-MSt) and methyl methacrylate were copolymerized at 60ЊC in toluene by radical polymerization induced by azobisisobutyronitrile. The kinetics were followed by gravimetry and correlated with the molecular weights, microstructure, and glass transition temperature. A model was developed taking into account the equilibrium of the a-MSt homopolymerization that could not be neglected at 60ЊC and higher temperatures. The model is in good agreement with all the experimental data.

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