A rheological method for the study of crosslinking of ethylene acetate and ethylene acrylic ester copolymer in a polypropylene matrix | Zendy

Cassagnau P. | Zendy; Bert M. | Zendy; Verney V. | Zendy; Michel A. | Zendy

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A rheological method for the study of crosslinking of ethylene acetate and ethylene acrylic ester copolymer in a polypropylene matrix

Author(s) -

Cassagnau P.,

Bert M.,

Verney V.,

Michel A.

Publication year - 1992

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760321504

Subject(s) - materials science , copolymer , ethylene , transesterification , polypropylene , activation energy , ethylene vinyl acetate , ethylene oxide , polymer chemistry , dynamic mechanical analysis , methyl acrylate , butyl acrylate , acrylate , rheology , catalysis , vinyl acetate , reaction mechanism , polymer , composite material , organic chemistry , chemistry

Transesterification may be used to crosslink a copolymer such as ethylene vinyl acetate with poly(ethylene acrylate‐co‐propylene) in the presence of dibutyltin oxide as a catalyst. A rheological study of the mechanism of this exchange reaction has been made: The kinetics of the crosslinking reaction was determined by studying the time and temperature dependence of the dynamic storage modulus G ′( t , T ) ω . Kinetic curves obtained for different reactive blends (EVA, PP/EVA, and PPf/EVA) allowed for the evaluation of the activation energy of the reaction and, thus, specified the appropriate parameters (temperature and time) for carrying out this reaction in a molten state.

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