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Effects of Fluctuation and Segregation in the Rate Acceleration of ATRP Miniemulsion Polymerization

✍ Scribed by Hidetaka Tobita

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
744 KB
Volume
20
Category
Article
ISSN
1022-1344

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✦ Synopsis

Abstract

In the ATRP and SFRP miniemulsion polymerization, a particle size range may exist in which the polymerization rate is larger than that of the corresponding bulk polymerization. Here, MC simulations are applied to clarify the reason for the acceleration. It is shown that the statistical variation of the trapping agent concentration (fluctuation effect) dominates the acceleration for good living conditions, while the segregation effect is important when the bimolecular termination is significant. Even for the segregation‐dominated conditions, the polymerization rate cannot be predicted accurately without accounting for the fluctuation effect. magnified image

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