Reentrant three-phase equilibrium of homologous polystyrene solution

被引：4
|
作者：
Suzuki, M
Dobashi, T [1 ]
Mikawa, Y
Yamamura, K
Nakata, M
机构：
[1] Gunma Univ, Fac Engn, Dept Biol & Chem Engn, Kiryu, Gumma 3768515, Japan
[2] Gunma Univ, Fac Engn, Dept Comp Sci, Kiryu, Gumma 3768515, Japan
[3] Chuo Univ, Dept Elect & Elect Engn, Tokyo 1128551, Japan
[4] Fac Sci, Dept Polit Sci, Sapporo, Hokkaido 0600810, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2000年 / 69卷 / 06期
关键词：
reentrant three-phase equilibrium; heterogeneous double plait point; homologous polymer solution; coexistence curve;
D O I：
10.1143/JPSJ.69.1741
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Phase equilibrium behavior was studied for a four-component system which consists of three polystyrene homologs with different molecular weights in methylcyclohexane. By using a refractive index method, a reentrant three-phase equilibrium was observed for the first time. The lower three-phase region appeared near the critical temperature of the binary system of polystyrene with the lowest molecular weight in methylcyclohexane. The characteristics of the observed phase equilibrium behavior was compared with the calculation using a generalized Flory-Huggins theory with an empirically determined interaction parameter.
引用
收藏
页码：1741 / 1744
页数：4
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