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Poly(ethylene‐ co ‐vinyl acetate) blends with phenoxy
Author(s) -
Son Tae Won,
Lee Dong Won,
Park Jun Ho,
Lim Sang Kyoo
Publication year - 1999
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19990711)73:2<227::aid-app9>3.0.co;2-q
Subject(s) - differential scanning calorimetry , materials science , ethylene vinyl acetate , crystallization , polymer chemistry , glass transition , miscibility , polymer blend , vinyl acetate , melting point , copolymer , chemical engineering , composite material , polymer , thermodynamics , physics , engineering
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. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 73: 227–236, 1999