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Mechanical properties of a polymer blend obtained through in situ crosslinking of the dispersed phase
Author(s) -
de Loor A.,
Cassagnau P.,
Michel A.,
Vergnes B.
Publication year - 1997
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(19970307)63:10<1385::aid-app19>3.0.co;2-3
Subject(s) - materials science , polypropylene , reactive extrusion , ultimate tensile strength , elastomer , transesterification , phase (matter) , butyl acrylate , polymer blend , copolymer , methyl acrylate , composite material , polymer , elongation , acrylate , polymer chemistry , extrusion , modulus , catalysis , chemistry , organic chemistry
Blends of a polypropylene matrix and a miscible phase of ethylene vinyl acetate and ethylene methyl acrylate copolymers were produced by twin‐screw extrusion. The miscible phase can be crosslinked in situ through a catalyzed transesterification reaction. Mechanical properties of reactive and nonreactive blends were characterized. Impact properties increase with the concentration of elastomeric phase and are improved by the crosslinking reaction. Yield stress and Young modulus are not modified by the reaction, but tensile stress and elongation at break are improved, which suggests the development of network structure at the interface. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 63: 1385–1390, 1997