LIQUID-LIQUID PHASE-SEPARATION AND GELATION IN THE POLYVINYL-ALCOHOL) POLY(ETHYLENE GLYCOL) WATER-SYSTEM - DEPENDENCE ON MOLECULAR-WEIGHT OF POLY(ETHYLENE GLYCOL)

被引：17

作者：

INAMURA, I

机构：

[1] Shimane Univ, Matsue, Jpn, Shimane Univ, Matsue, Jpn

来源：

POLYMER JOURNAL | 1986年 / 18卷 / 03期

关键词：

MICROSCOPIC EXAMINATION - MOLECULAR WEIGHT - THERMODYNAMICS;

D O I：

10.1295/polymj.18.269

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In studying the phase separation of a poly(vinyl alcohol) (PVA)-poly(ethylene glycol) (PEG)-water system, it was suggested that the polymer-polymer interaction parameter in the system is a complicated function of PEG molecular weight. In the present work, the concentration regions were liquid-liquid phase separation and gelation occur in the PVA-PEG-water system have been determined using PEG of different molecular weights ranging from 300 to 5. 94 multiplied by 10**5. It was found that both phase separation and gelation remarkably depend on the molecular weight of PEG. The phase separation occurred in the mixture with PED molecular weights greater than 600, and did not with a PEG molecular weight of 300.

引用

页码：269 / 272

页数：4

共 6 条

[1]

FLORY PJ, 1953, PRINCIPLES POLYM CHE, pCH13

[2] EFFECTS OF MOLECULAR-WEIGHT ON THE PHASE-EQUILIBRIUM OF A POLYVINYL-ALCOHOL) POLY(ETHYLENE GLYCOL) WATER-SYSTEM [J].