Studies on Grafting Kinetics of Bulk Copolymerization of Styrene onto Rubber(Ⅰ)──Grafting Behavior

Abstract

Abstract: The difference between apparent grafting ratio and true grafting ratio in bulk graft copolymerization of styrene onto rubber and the change of rubber particle size during the overall polymerization processes were studied. The results show that, the apparent grafting ratio increased mutationally at the phase inversion and trended to level off after the phase inversion, but the true grating ratio increased gradually with the increase of conversion. At the same time, the particle size of rubber phase in the original polymerizing mixtures almost kept constant after the phase inversion. On the contrary, the size increased with the increase of conversion when the samples were dealt with multi-solution-centrifugation.

Key words: Graft polymerization, Bulk polymerization, Kinetics, Rubber, Styrene

CLC Number:

O631.5
TQ316

TrendMD:

HUANG Yuan, CAO Kun, LI Bao-Fang, LI Bo-Geng . Studies on Grafting Kinetics of Bulk Copolymerization of Styrene onto Rubber(Ⅰ)──Grafting Behavior[J]. Chem. J. Chinese Universities, 2003, 24(7): 1338.

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Studies on Grafting Kinetics of Bulk Copolymerization of Styrene onto Rubber(Ⅰ)──Grafting Behavior

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