Novel blends of alternating propene-carbon monoxide copolymers and styrenic copolymers

S. C. De Vos, W. Huhn, B. Rieger, M. Moller

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Alternating propene-carbon monoxide copolymers (P-CO) were melt-blended with polystyrene, poly(styrene-co-acrylonitrile) (SAN), and with poly(styrene-co-maleic anhydride) (SMA). P-CO forms homogeneously miscible blends with SAN containing 25 wt% AN at the investigated blend compositions. The transparent blends have single, intermediate glass transition temperatures that fit the Fox equation. The elastic properties of P-CO at room temperature disappear upon blending with SAN because the Tg is driven above RT. Polystyrene and SMA are not miscible with P-CO and form heterogeneous blends with two glass transitions. This demonstrates that both the polarity of the styrenic copolymer and the nature of the comonomer govern its phase behavior.

Original languageEnglish
Pages (from-to)611-618
Number of pages8
JournalPolymer Bulletin
Volume42
Issue number5
DOIs
StatePublished - 1999
Externally publishedYes

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