Variable morphologies of poly(vinyl acetate)–montmorillonite nanocomposites obtained by emulsion polymerization in the presence of poly(vinyl pyrrolidone)

Nanocomposites containing poly(vinyl acetate) and montmorillonite (MMT) were prepared using a emulsion polymerization recipe, assisted by poly (vinylpyrrolidone). The relative clay concentration with respect to the other reaction partners influences drastically the morphological units in the end-pro...

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Bibliographic Details
Published in:e-Polymers 2006-12, Vol.6 (1), p.767-780
Main Authors: Corobea, Mihai-Cosmin, Uricanu, Violeta, Donescu, Dan, Deladi, Szabolcs, Radovici, Constantin, Serban, Sever, Constantinescu, Elena
Format: Article
Language:English
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Summary:Nanocomposites containing poly(vinyl acetate) and montmorillonite (MMT) were prepared using a emulsion polymerization recipe, assisted by poly (vinylpyrrolidone). The relative clay concentration with respect to the other reaction partners influences drastically the morphological units in the end-products. For low [MMT], well-defined, spherical PVAc particles are formed. At the other extreme, for high [MMT], production of polymeric, water-swollen aggregates is favored. Depending on the MMT/PVP ratio, the clay will be dispersed in the final polymer matrix in variable forms, from individual platelets to agglomerates of reformed tactoids.
ISSN:2197-4586
1618-7229
1618-7229
DOI:10.1515/epoly.2006.6.1.767