Impact-modified poly(styrene-co-acrylonitrile) blends containing both oxazoline-functionalized poly(ethene-co-1-octene) elastomers and poly(styrene-co-maleic anhydride) as compatibilizer

Blends of a poly(styrene‐co‐acrylonitrile) (SAN) with poly(ethene‐co‐1‐octene) rubber (EOR) were investigated. An improved toughness–stiffness balance was obtained when adding as a compatibilizer a blend consisting of oxazoline‐functionalized EOR, prepared by grafting EOR with oxazoline‐functional m...

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Bibliographic Details
Published in:Journal of applied polymer science 1999-08, Vol.73 (9), p.1685-1695
Main Authors: Mäder, Dietmar, Kressler, Jörg, Mülhaupt, Rolf
Format: Article
Language:English
Subjects:
Applied sciences
blend
Exact sciences and technology
metallocene
Organic polymers
oxazoline
Physicochemistry of polymers
Properties and characterization
reactive blending
rubber
SAN
SMA
Structure, morphology and analysis
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Summary:Blends of a poly(styrene‐co‐acrylonitrile) (SAN) with poly(ethene‐co‐1‐octene) rubber (EOR) were investigated. An improved toughness–stiffness balance was obtained when adding as a compatibilizer a blend consisting of oxazoline‐functionalized EOR, prepared by grafting EOR with oxazoline‐functional maleinate, and poly(styrene‐co‐maleic anhydride) (SMA), which is miscible with SAN. Enhanced interfacial adhesion was evidenced by the improved dispersion of the EOR in the SAN matrix and the reduced glass transition temperature of the dispersed EOR phase. Morphology studies using transmission electron microscopy revealed formation of an interphase between the matrix and the rubber particles. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 73: 1685–1695, 1999
ISSN:0021-8995
1097-4628
DOI:10.1002/(SICI)1097-4628(19990829)73:9<1685::AID-APP9>3.0.CO;2-5