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Pressure effects on the thermodynamics of trans-decahydronaphthalene/polystyrene polymer solutions: Application of the Sanchez-Lacombe lattice fluid theory
Jiang, SC; An, LJ; Jiang, BZ; Wolf, BA
2003-03-25
Source PublicationMACROMOLECULAR CHEMISTRY AND PHYSICS
ISSN1022-1352
Volume204Issue:4Pages:692-703
AbstractThe cloud-point temperatures (T-cl's) of trans-decahydronaphthalene(TD)/polystyrene (PS, (M) over bar (w) = 270 000) solutions were determined by light scattering measurements over a range of temperatures (1-16degreesC), pressures (100-900 bar), and compositions (4.2-21.6 vol.-% polymer). The system phase separates upon cooling and T-cl was found to increase with rising pressure for constant composition. In the absence of special effects, this finding indicates positive excess volume for the mixing. Special attention was paid to the demixing temperatures as a function of pressure for different polymer solutions and the plots in the T-phi plane (where phi signifies volume fractions). The cloud-point curves of polymer solutions under different pressures were observed for different compositions, which demonstrated that pressure has a greater effect on the TD/PS solutions when far from the critical point as opposed to near the critical point. The Sanchez-Lacombe lattice fluid theory (SLLFT) was used to calculate the spinodals, the binodals, the Flory-Huggins (FH) interaction parameter, the enthalpy of mixing, and the volume changes of mixing. The calculated results show that modified PS scaling parameters can describe the thermodynamics of the TD/PS system well. Moreover the SLLFT describes the experimental results well.
KeywordPhase Separation Pressure Effects Sanchez-lacombe Lattice Fluid Theory Thermodynamics Trans-decahydronaphthalene/polystyrene Polymer Solution
Indexed BySCI
Language英语
WOS IDWOS:000182265000018
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81018
Collection中国科学院化学研究所
Corresponding AuthorJiang, SC
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Univ Mainz, Inst Phys Chem, D-55099 Mainz, Germany
Recommended Citation
GB/T 7714
Jiang, SC,An, LJ,Jiang, BZ,et al. Pressure effects on the thermodynamics of trans-decahydronaphthalene/polystyrene polymer solutions: Application of the Sanchez-Lacombe lattice fluid theory[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2003,204(4):692-703.
APA Jiang, SC,An, LJ,Jiang, BZ,&Wolf, BA.(2003).Pressure effects on the thermodynamics of trans-decahydronaphthalene/polystyrene polymer solutions: Application of the Sanchez-Lacombe lattice fluid theory.MACROMOLECULAR CHEMISTRY AND PHYSICS,204(4),692-703.
MLA Jiang, SC,et al."Pressure effects on the thermodynamics of trans-decahydronaphthalene/polystyrene polymer solutions: Application of the Sanchez-Lacombe lattice fluid theory".MACROMOLECULAR CHEMISTRY AND PHYSICS 204.4(2003):692-703.
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