Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Original Papers
Miscibility Behavior of Ethylene/Vinyl Acetate and C5 Petroleum Resin by FTIR Imaging
Xin ZHOUPudun ZHANGZhifa LIGuoying RAO
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2007 Volume 23 Issue 7 Pages 877-880

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Abstract

FTIR microscopic imaging was used to investigate the miscibility behavior of ethylene/vinyl acetate copolymer (EVA) and C5 petroleum resin. Images with an area of 500 × 500 µm2 were collected in the reflection mode. The miscibility was characterized by probing the spatial distribution of the carbonyl group (C=O) of EVA in the whole images. It was found that a 1:1 hot-melt mixture of EVA and C5 resin showed a good miscibility behavior. For two different EVA copolymers, one with 18% vinyl acetate (VAc) content showed a better miscibility behavior than that with 28% VAc content. Our results demonstrated that this method allowed a direct, convenient and nondestructive visualization. This developed technique promises to become a powerful tool for studying the miscibility behavior of composite materials.

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© 2007 by The Japan Society for Analytical Chemistry
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