Vapor-Liquid Equilibrium in Diluted Polymer plus Solvent Systems

被引：8
|
作者：
Bogdanic, Grozdana [1 ]
Wichterle, Ivan [1 ]
机构：
[1] Acad Sci Czech Republic, Inst Chem Proc Fundamentals, Vvi, CR-16502 Prague 6, Czech Republic
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2011年 / 56卷 / 04期
关键词：
FLOW IMPROVER ADDITIVES; PREDICTION; MIXTURES; EQUATION;
D O I：
10.1021/je101052a
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Vapor-liquid equilibrium data were determined for five polymer + methylbenzene systems under isothermal conditions between (333.15 and 373.15) K. The polymers studied include copolymers and terpolymers of octadecyl propenoate, propenoic acid, ethenylbenzene, and 1-vinyl-2-pyrrolidone because of their practical importance as flow improvers for crude oil and/or derivatives. An all-glass microebulliometer with circulation of the liquid phase was used for measurements of total pressure over polymer + methylbenzene mixtures. Two predictive group-contribution models (entropic-free volume and group contribution-Flory) were applied to estimate the phase behaviors of two polymer solutions; good agreement with the experimental data was achieved.
引用
收藏
页码：1080 / 1083
页数：4
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