Miscibility of polymer blends of poly(styrene-co-4-hydroxystyrene) with bisphenol-A polycarbonate

Guangxian Li, J. M G Cowie, V. Arrighi

Research output: Contribution to journalArticle

Abstract

The miscibility of blends of bisphenol-A polycarbonate (BAPC) and tetramethyl bisphenol-A polycarbonate (TMPC) with copolymers of poly(styrene-co-4-hydroxystyrene) (PSHS) was studied in this work. It has been demonstrated that BAPC is miscible with PSHS over a region of approximately 45-75 mol % hydroxyl groups in the copolymer. TMPC has a wider miscible window than BAPC when blended with PSHS. The blend miscibility was considered to be driven by the intermolecular attractive interactions between the hydroxyl groups of the PSHS and the p electrons of the aromatic rings of both polycarbonates (PCs). As the FTIR measurements showed, after blending of BAPC with PSHS, there is no visible shift of the carbonyl band of BAPC at 1774 cm-1, whereas the stretching frequency of the free hydroxyl groups of the copolymers at 3523 cm-1 disappeared. The large positive values of the segment interaction energy density parameter Bst-HS calculated from the group contribution approach indicated that the intramolecular repulsive interaction may also have played a role in the promotion of the blend miscibility.

Original languageEnglish
Pages (from-to)639-646
Number of pages8
JournalJournal of Applied Polymer Science
Volume74
Issue number3
DOIs
Publication statusPublished - 1999

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Styrene
Polymer blends
Solubility
Hydroxyl Radical
polycarbonate
Copolymers
4-vinylphenol
bisphenol-A-polycarbonate
Stretching
Electrons

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title = "Miscibility of polymer blends of poly(styrene-co-4-hydroxystyrene) with bisphenol-A polycarbonate",
abstract = "The miscibility of blends of bisphenol-A polycarbonate (BAPC) and tetramethyl bisphenol-A polycarbonate (TMPC) with copolymers of poly(styrene-co-4-hydroxystyrene) (PSHS) was studied in this work. It has been demonstrated that BAPC is miscible with PSHS over a region of approximately 45-75 mol {\%} hydroxyl groups in the copolymer. TMPC has a wider miscible window than BAPC when blended with PSHS. The blend miscibility was considered to be driven by the intermolecular attractive interactions between the hydroxyl groups of the PSHS and the p electrons of the aromatic rings of both polycarbonates (PCs). As the FTIR measurements showed, after blending of BAPC with PSHS, there is no visible shift of the carbonyl band of BAPC at 1774 cm-1, whereas the stretching frequency of the free hydroxyl groups of the copolymers at 3523 cm-1 disappeared. The large positive values of the segment interaction energy density parameter Bst-HS calculated from the group contribution approach indicated that the intramolecular repulsive interaction may also have played a role in the promotion of the blend miscibility.",
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Miscibility of polymer blends of poly(styrene-co-4-hydroxystyrene) with bisphenol-A polycarbonate. / Li, Guangxian; Cowie, J. M G; Arrighi, V.

In: Journal of Applied Polymer Science, Vol. 74, No. 3, 1999, p. 639-646.

Research output: Contribution to journalArticle

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