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Colloid and Polymer Science

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01-12-2012 | Short Communication

Polystyrene/MMT nanocomposites prepared by soap-free emulsion polymerization with high solids content

Authors: Jun Chen, Hai-Long Liu, Xiao-Qin Hong, Mu-Li Wang, Cheng Cai, Qian-Feng Zhang

Published in: Colloid and Polymer Science | Issue 18/2012

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Abstract

Polystyrene/montmorillonite (PSt/MMT) nanocomposite latexes have been synthesized by soap-free emulsion polymerization using MMT clay platelets as stabilizer. Small amounts of methacrylic acid were used as auxiliary monomer to promote clay adhesion to the surface of the particles. Overall solids content of the composite latexes in complete absence of coagulation of up to 30.7 wt% are reported under batch conditions. The 3 wt% MMT clay platelets were sufficient to maintain the colloidal stability and increasing MMT clay content resulted in the increase of particle diameter due to the improved viscosity of reaction medium. Transmission electron microscopy results demonstrate the existence of MMT platelets on the particle surface. X-ray diffraction spectroscopy (XRD) results show that an exfoliated structure of PSt/MMT nanocomposites was obtained in this study with the absence of d₀₀₁ diffraction peak of MMT in the XRD region.

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Title: Polystyrene/MMT nanocomposites prepared by soap-free emulsion polymerization with high solids content
Authors: Jun Chen
Hai-Long Liu
Xiao-Qin Hong
Mu-Li Wang
Cheng Cai
Qian-Feng Zhang
Publication date: 01-12-2012
Publisher: Springer-Verlag
Published in: Colloid and Polymer Science / Issue 18/2012
Print ISSN: 0303-402X
Electronic ISSN: 1435-1536
DOI: https://doi.org/10.1007/s00396-012-2823-7

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