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Titolo:
Thermodynamics of PMMA/SAN blends: Application of the Sanchez-Lacombe lattice fluid theory
Autore:
Wen, GY; Sun, ZY; Shi, TF; Yang, J; Jiang, W; An, LJ; Li, BY;
Indirizzi:
Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China Chinese Acad Sci Changchun PeoplesR China 130022 30022, Peoples R China Jilin Univ, Dept Chem, Res Ctr Special Engn Plast, Changchun 130023, Peoples R China Jilin Univ Changchun Peoples R China 130023 chun 130023, Peoples R China
Titolo Testata:
MACROMOLECULES
fascicolo: 18, volume: 34, anno: 2001,
pagine: 6291 - 6296
SICI:
0024-9297(20010828)34:18<6291:TOPBAO>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
RANDOM COPOLYMER BLENDS; POLY(METHYL METHACRYLATE); POLYMER BLENDS; PHASE-SEPARATION; POLY(VINYL METHYL-ETHER); POLY(STYRENE-CO-ACRYLONITRILE); MISCIBILITY; BEHAVIOR; POLYSTYRENE; COMPATIBILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: An, LJ Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China Chinese Acad Sci Changchun Peoples R China 130022 Peoples R China
Citazione:
G.Y. Wen et al., "Thermodynamics of PMMA/SAN blends: Application of the Sanchez-Lacombe lattice fluid theory", MACROMOLEC, 34(18), 2001, pp. 6291-6296

Abstract

Polymer blends of poly(methyl methacrylate) (PMMA) and poly(styrene-co-acrylonitrile) (SAN) with an acrylonitrile content of about 30 wt % were prepared by means of solution-casting and characterized by virtue of pressure-volume-temperature (PVT) dilatometry. The Sanchez-Lacombe (SL) lattice fluid theory was used to calculate the spinodals, the binodals, the Flory-Huggins(FH) interaction parameter, the enthalpy of the mixing, the volume change of the mixing, and the combinatorial and vacancy entropies of the mixing for the PMMA/SAN system. A new volume-combining rule was used to evaluate theclose-packed volume per mer, upsilon*, of the PMMA/SAN blends. The calculated results showed that the new and the original volume-combining rules hada slight influence on the FH interaction parameter, the enthalpy of the mixing, and the combinatorial entropy of the mixing. Moreover, the spinodals and the binodals calculated with the SL theory by means of the new volume-combining rule could coincide with the measured data for the PMMA/SAN systemwith a lower critical solution temperature, whereas those obtained by means of the original one could not.

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Documento generato il 25/01/20 alle ore 16:13:13