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Title: Heterocoagulation of polychloroprene on natural rubber latex particles for use in the preparation of toughened polystyrene
Authors: P. Tangboriboonrat
U. Buranabunya
S. Sangribsub
Mahidol University
Keywords: Materials Science
Issue Date: 3-Jan-2003
Citation: Journal of Applied Polymer Science. Vol.87, No.1 SPEC. (2003), 9-13
Abstract: The toughness of high-impact polystyrene based on γ-radiation-vulcanized natural rubber (NR) was effectively enhanced by the addition of a block copolymer at the NR/polystyrene interface. An NR/polychloroprene (CR) composite latex particle was produced by the heterocoagulation technique for its use as a model in a compatibilization study. A nonionic surfactant (Tween 80), whose molecule bore poly(ethylene oxide) (PEO), was adsorbed onto the CR particle and allowed to form a complex between PEO and an indigenous surfactant (protein-lipid) on the NR particle surface. The presence of CR-Tween on the outer layer of the obtained composite polymer particle was characterized by the particle size, ζ potential, and glass-transition temperature. That the film cast from the heterocoagulated latex showed better oil resistance than the NR film confirmed the NR/CR core-shell structure. © 2002 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 87.
ISSN: 00218995
Appears in Collections:Scopus 2001-2005

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