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Thermodynamical study on pressure-induced compatibility in UCST polymer-containing mixtures |
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| Authors: | Meng?Yanfeng |
| Institution: | 1. Department of Chemistry, Yantai Normal University, Yantai 264025, China; State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China 2. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China |
| Abstract: | The present calculations were performed on the basis of the Sanchez-Lacombe lattice fluid theory and the new combinatorial rules for block copolymer according to the experimental results on the pressure-induced compatibility in poly(ethylene oxide) (PEO) and poly(ethylene ox-ide-b-dimethylsiloxane) (P(EO-b-DMS)) mixtures with UCST behavior. The study on enthalpy, combinatorial entropy, vacancy entropy and Gibbs energy upon mixture shows that San-chez-Lacombe fluid theory and the new combinatorial rules could describe the pressure-induced compatibility (PIC) of polymer mixtures with UCST behavior well. |
| Keywords: | UCST polymer mixture pressure-induced compatibility Sanchez-Lacombe fluid theory polymer thermody-namics under pressure |
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