ICCAS OpenIR
Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture
Sun, ZY; Yang, JA; Jiang, W; An, LJ; Jiang, ZH; Wu, ZW
2002-06-01
Source PublicationPOLYMER
ISSN0032-3861
Volume43Issue:14Pages:4047-4054
AbstractIn the framework of lattice fluid model, the Gibbs energy and equation of state are derived by introducing the energy (E-s) stored during flow for polymer blends under shear. From the calculation of the spinodal of poly(vinyl methyl ether) (PVME) and polystyrene (PS) mixtures, we have found the influence of E., an equation of state in pure component is inappreciable, but it is appreciable in the mixture. However, the effect of E, on phase separation behavior is extremely striking. In the calculation of spinodal for the PVME/PS system, a thin, long and banana miscibility gap generated by shear is seen beside the miscibility gap with lower critical solution temperature. Meanwhile, a binodal coalescence of upper and lower miscibility gaps is occurred. The three points of the three-phase equilibrium are forecasted. The shear rate dependence of cloud point temperature at a certain composition is discussed. The calculated results are acceptable compared with the experiment values obtained by Higgins et at. However, the maximum positive shift and the minimum negative shift of cloud point temperature guessed by Higgins are not obtained, Furthermore, the combining effects of pressure and shear on spinodal shift are predicted. (C) 2002 Elsevier Science Ltd. All rights reserved.
KeywordShear Pressure Polymer Mixture
Indexed BySCI
Language英语
WOS IDWOS:000176030500025
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78508
Collection中国科学院化学研究所
Corresponding AuthorAn, LJ
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Jilin Univ, Dept Chem, Res Ctr Super Engn Plast, Changchun 130023, Peoples R China
Recommended Citation
GB/T 7714
Sun, ZY,Yang, JA,Jiang, W,et al. Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture[J]. POLYMER,2002,43(14):4047-4054.
APA Sun, ZY,Yang, JA,Jiang, W,An, LJ,Jiang, ZH,&Wu, ZW.(2002).Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture.POLYMER,43(14),4047-4054.
MLA Sun, ZY,et al."Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture".POLYMER 43.14(2002):4047-4054.
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