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Preparation and characterization of ethylene vinyl acetate copolymer/montmorillonite nanocomposite

✍ Scribed by Cheol Hwan Jeon; Sung Hun Ryu; Young-Wook Chang

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
197 KB
Volume
52
Category
Article
ISSN
0959-8103

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✦ Synopsis

Abstract

Ethylene vinyl acetate copolymer (EVA) and monmorillonite (MMT) nanocomposites have been investigated as a function of vinyl acetate content and molecular weight of EVA and types of substituted alkyl ammonium of MMT. It is found that vinyl acetate content and type of substituted alkyl ammonium are important factors for the intercalation behaviour of MMT in MMT/EVA nanocomposite. Maleic anhydride grafted high‐density polyethylene was used as a compatibilizer to improve the intercalation behaviour of MMT. X‐ray diffraction and transmission electron microscopy were used to characterize the intercalation/exfoliation behaviour, and mechanical properties were measured.

Β© 2003 Society of Chemical Industry

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A series of ethylene vinyl acetate (EVA) copolymers was studied by dynamic mechanical spectroscopy to understand the relative influence of composition, structure, and molecular weight distribution on their rheological behavior in the melt. The examination of their viscoelastic properties in a large