ICCAS OpenIR
Effects of pressure and molecular weight on the miscibility of polystyrene and cyclohexane
Sun, ZY; An, LJ; Li, HF; Jiang, ZH; Wu, ZW
2001-09-21
Source PublicationMACROMOLECULAR THEORY AND SIMULATIONS
ISSN1022-1344
Volume10Issue:7Pages:692-699
AbstractWith the aid of Sanchez-Lacombe lattice fluid theory (SLLFT), the phase diagrams were calculated for the system cyclohexane (CH)/polystyrene (PS) with different molecular weights at different pressures. The experimental data is in reasonable agreement with SLLFT calculations. The total Gibbs interaction energy, g*(12) for different molecular weights PS at different pressures was expressed, by means of a universal relationship, as g(12)* =f(12)* + (P - P-0) nu*(12) demixing curves were then calculated at fixed (near critical) compositions of CH and PS systems for different molecular weights. The pressures of optimum miscibility obtained from the Gibbs interaction energy are close to those measured by Wolf and coworkers. Furthermore, a reasonable explanation was given for the earlier observation of Saeki et al., i.e., the phase separation temperatures of the present system increase with the increase of pressure for the low molecular weight of the polymer whereas they decrease for the higher molecular weight polymers. The effects of molecular weight, pressure, temperature and composition on the Flory Huggins interaction parameter can be described by a general equation resulting from fitting the interaction parameters by means of Sanchez-Lacombe lattice fluid theory.
Indexed BySCI
Language英语
WOS IDWOS:000171293700005
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/76790
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,An, LJ,Li, HF,et al. Effects of pressure and molecular weight on the miscibility of polystyrene and cyclohexane[J]. MACROMOLECULAR THEORY AND SIMULATIONS,2001,10(7):692-699.
APA Sun, ZY,An, LJ,Li, HF,Jiang, ZH,&Wu, ZW.(2001).Effects of pressure and molecular weight on the miscibility of polystyrene and cyclohexane.MACROMOLECULAR THEORY AND SIMULATIONS,10(7),692-699.
MLA Sun, ZY,et al."Effects of pressure and molecular weight on the miscibility of polystyrene and cyclohexane".MACROMOLECULAR THEORY AND SIMULATIONS 10.7(2001):692-699.
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