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Kinetics of Miniemulsion Polymerization of Styrene in the Presence of Organoclays

✍ Scribed by Zhaohui Tong; Yulin Deng

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 241 KB
Volume: 293
Category: Article
ISSN: 1438-7492
DOI: 10.1002/mame.200800028

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✦ Synopsis

Abstract

The impacts of nanoclays on the miniemulsion polymerization kinetics of styrene were studied. It was found that both R~P~ and the fractional conversion decreased upon increasing the organoclay content in the miniemulsion system. In the presence of nanoclay the molecular weight of polystyrene nanoclay composite is lower and the particle size polydispersity of the final composite latex is greater than that of pure styrene miniemulsion polymerization. The effect of the nanoclays is mainly caused by the destabilization of the miniemulsion by the organoclay particles. The increase in the monomer viscosity and the decrease in the diffusion rate of the monomer and the living polymer inside the monomer droplet also accounts for the reduction in the polymerization rate.

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