Phase equilibria in polydisperse and associating copolymer solutions:: Poly (ethene-co-(meth)acrylic acid)-monomer mixtures

被引：50
作者：
Kleiner, M
Tumakaka, F
Sadowski, G
Latz, H
Buback, M
机构：
[1] Univ Dortmund, Lehrstruhl Thermodynam, D-44227 Dortmund, Germany
[2] Univ Gottingen, Inst Phys Chem, D-37077 Gottingen, Germany
来源：
FLUID PHASE EQUILIBRIA | 2006年 / 241卷 / 1-2期
关键词：
cloud point; copolymerization; ethylene-(meth)acrylic acid copolymers; association; polydisperse;
D O I：
10.1016/j.fluid.2005.12.027
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Phase equilibria of copolymer-monomer mixtures have been modeled on the basis of experimental cloud-point pressure curves for poly(ethene-co-acrylic acid) and for poly(ethene-co-methacrylic acid). The monomer system was ethene. In case of poly(ethene-co-acrylic acid), in addition, ethene-acrylic acid mixtures were used as the solvent. The association term of the PC-SAFT equation of state has been extended to account for the polydispersity of the copolymer samples. For this purpose, two pseudo-components were introduced for each copolymer. The amount and the molecular weight of these components were related to the number and weight averages of the copolymer material, M-n and M-w, respectively. For the strongly hydrogen-bonded systems, the influence on cloud-point pressures of copolymer composition and of molecular weight distribution can be adequately described by PC-SAFT modeling with temperature-independent parameters. (c) 2006 Elsevier B.V. All rights reserved.
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收藏
页码：113 / 123
页数：11
相关论文
共 29 条
[1]   PERTURBATION THEORY AND EQUATION OF STATE FOR FLUIDS .2. A SUCCESSFUL THEORY OF LIQUIDS [J].
BARKER, JA ;
HENDERSO.D .
JOURNAL OF CHEMICAL PHYSICS, 1967, 47 (11) :4714-&
[2]   Multicomponent flash algorithm for mixtures containing polydisperse polymers [J].
Behme, S ;
Sadowski, G ;
Song, YH ;
Chen, CC .
AICHE JOURNAL, 2003, 49 (01) :258-268
[3]   PERTURBED HARD-CHAIN THEORY - EQUATION OF STATE FOR FLUIDS CONTAINING SMALL OR LARGE MOLECULES [J].
BERET, S ;
PRAUSNITZ, JM .
AICHE JOURNAL, 1975, 21 (06) :1123-1132
[4]  
BEYER C, 2002, HELV CHIM ACTA, P659
[5]  
BUBACK M, 2003, CHEM PHYS, P638
[6]   PHASE-EQUILIBRIA OF ASSOCIATING FLUIDS CHAIN MOLECULES WITH MULTIPLE BONDING SITES [J].
CHAPMAN, WG ;
JACKSON, G ;
GUBBINS, KE .
MOLECULAR PHYSICS, 1988, 65 (05) :1057-1079
[7]   NEW REFERENCE EQUATION OF STATE FOR ASSOCIATING LIQUIDS [J].
CHAPMAN, WG ;
GUBBINS, KE ;
JACKSON, G ;
RADOSZ, M .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1990, 29 (08) :1709-1721
[8]   Modeling polyethylene fractionation using the perturbed-chain statistical associating fluid theory equation of state [J].
Cheluget, EL ;
Bokis, CP ;
Wardhaugh, L ;
Chen, CC ;
Fisher, J .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2002, 41 (05) :968-988
[9]   PHASE-EQUILIBRIA IN POLYMER-SOLUTIONS - BLOCK-ALGEBRA, SIMULTANEOUS FLASH ALGORITHM COUPLED WITH SAFT EQUATION OF STATE, APPLIED TO SINGLE-STAGE SUPERCRITICAL ANTISOLVENT FRACTIONATION OF POLYETHYLENE [J].
CHEN, CK ;
DURAN, MA ;
RADOSZ, M .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1993, 32 (12) :3123-3127
[10]   FLASH CALCULATIONS FOR CONTINUOUS OR SEMICONTINUOUS MIXTURES USING AN EQUATION OF STATE [J].
COTTERMAN, RL ;
PRAUSNITZ, JM .
INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT, 1985, 24 (02) :434-443
123