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Rheology, structure, and properties of ethylene–vinyl acetate/metallocene‐catalyzed ethylene–α‐olefin copolymer blends
Author(s) -
Kontopoulou Marianna,
Huang Leo C.
Publication year - 2004
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/app.20913
Subject(s) - materials science , ethylene , copolymer , metallocene , rheology , adhesive , octene , olefin fiber , polymer chemistry , morphology (biology) , vinyl acetate , scanning electron microscope , butene , chemical engineering , composite material , catalysis , organic chemistry , polymerization , polymer , chemistry , layer (electronics) , biology , engineering , genetics
The rheology, morphology, thermal, mechanical, and adhesive properties of blends containing ethylene–vinyl acetate and metallocene‐catalyzed ethylene–α‐olefin copolymers, containing butene and octene comonomers, were investigated. On the basis of the thermal and rheological properties and scanning electron microscopy observations, we deduced that these blends were immiscible, both in the solid and melt states over the whole range of compositions. Rheological properties were correlated to blend morphology with the Palierne emulsion model. The butene‐based blends had better mechanical properties, which was attributed to their finer morphology, lower interfacial tension, and better adhesive properties. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 881–889, 2004