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Poly(ethylene-co-vinyl acetate) blends with phenoxy

✍ Scribed by Tae Won Son; Dong Won Lee; Jun Ho Park; Sang Kyoo Lim

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 377 KB
Volume: 73
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19990711)73:2<227::aid-app9>3.0.co;2-q

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✦ Synopsis

EVA was blended with phenoxy over the whole range of composition using a twin-screw Brabender. Two-phase separation caused by EVA crystallization was observed in the EVA-rich blends and the dispersed domain of EVA was not clearly shown in the phenoxy-rich blends. Differential scanning calorimetry (DSC) showed that the glass transition temperature (T g ) of EVA was increased by 5-10°C in the EVA-rich blends but the T g of phenoxy was superposed over the melting behavior of EVA. X-ray diffraction measurement indicated that EVA crystallization was restricted in the phenoxy-rich blends and the EVA crystal structure was influenced by incorporation of phenoxy into the EVA-rich blends.

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