Compatibilization and characterization of blends of styrene-maleic anhydride copolymer with modified polyethylenes

Document Type

Article

Publication Date

5-2-2001

Abstract

Potentially reactive blends of styrene-maleic anhydride (SMAH) with ethylene/methyl acrylate/glycidyl methacrylate (E-MA-GMA) and nonreactive blends of SMAH with ethylene/methyl acrylate (E-MA) were produced in a Brabender batch mixer and in a corotating twin-screw extruder. The products were characterized in terms of rheology, morphology, and mechanical properties to understand the reaction characteristics between anhydride/epoxy functional groups. Storage modulus, G′, loss modulus, G″ and complex viscosity, η* of the reactive blends were higher than those of nonreactive ones. At 25% E-MA-GMA content, maximum in η* was obtained for the reactive blends. The reactive blends showed finer morphology than the nonreactive ones at all concentrations studied. Mechanical characterization showed that reactive SMAH/E-MA-GMA blends had higher tensile strength, % strain at break, and tensile modulus than the nonreactive blends for all corresponding modified polyethylene contents.

Identifier

0035795796 (Scopus)

Publication Title

Journal of Applied Polymer Science

External Full Text Location

https://doi.org/10.1002/1097-4628(20010502)80:5<790::AID-APP1156>3.0.CO;2-2

ISSN

00218995

First Page

790

Last Page

797

Issue

5

Volume

80

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