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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/20794
Title: Morphology of peroxide-prevulcanised natural rubber latex: Effect of reaction time and deproteinisation
Authors: P. Tangboriboonrat
D. Polpanich
T. Suteewong
K. Sanguansap
U. Paiphansiri
C. Lerthititrakul
Mahidol University
Keywords: Chemical Engineering;Chemistry;Materials Science
Issue Date: 1-Dec-2003
Citation: Colloid and Polymer Science. Vol.282, No.2 (2003), 177-181
Abstract: A non-uniform mesh structure, i.e. a dense network near the surface of peroxide-prevulcanised natural rubber latex particles, was observed under transmission electron microscopy. In the initial period of prevulcanisation, the swelling ratio of the latex sheet decreased with longer reaction time while an increase in crosslink density of rubber particles containing polystyrene, prepared using the phase transfer/bulk polymerisation process, was noticed. The modulus of the rubber sheet increased up to maximum crosslinking and thereafter decreased. After removal of proteins from the latex membrane layer, derived from protein-lipid originally existing at the rubber particle surface, could not be detected. The absence of proteins, which act as free radical scavengers, resulted in a rapid diffusion of alkoxy radicals into the rubber phase of deproteinised latex and, therefore, a uniform crosslink distribution inside each particle was obtained. © Springer-Verlag 2003.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=2542510757&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/20794
ISSN: 0303402X
Appears in Collections:Scopus 2001-2005

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