Specific interaction governing the melt intercalation of clay with poly(styrene-co-acrylonitrile) copolymers

Title
Specific interaction governing the melt intercalation of clay with poly(styrene-co-acrylonitrile) copolymers
Authors
이상수이춘수김명훈곽승엽박민임순호최철림김준경
Keywords
clay; melt intercalation; poly(styrene-co-acrylonitrile); specific interaction; nanocomposite
Issue Date
2001-10
Publisher
Journal of polymer science Part B, Polymer physics
Citation
VOL 39, NO 20, 2430-2435
Abstract
In the melt intercalation of cation-exchange clay, mixtures of montmorillonite and poly(styrene-co-acrylonitrile) (SAN) with various acrylonitrile contents were studied to examine the effect of specific interaction. When organic molecules with hydroxyl groups were used as intercalants for the clay, the amount of SANpenetrating the gallery of the layered structure of the clay and the corresponding increase in the gallery height occurred at a much higher rate because of the attractive specific interaction between acrylonitrile groups and polar groups on the clay surface. However, there was a limit to the increase in the gallery height, and the tendency for the gallery height to increase with the acrylonitrile group content disappeared when the acrylonitrile content was greater than 30 wt %, implying that excessive attractive interaction on the clay surfaces and polymer molecules glued the two adjacent silicate layers together; consequently, the increase in the gallery height could not be accomplished. © 2001 John Wiley & Sons, Inc. J Polym Sci Part B: Polym Phys 39: 2430–2435, 2001
URI
http://pubs.kist.re.kr/handle/201004/13699
ISSN
0887-6266
Appears in Collections:
KIST Publication > Article
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