Influence of hydrophobe content on phase coexistence curves of aqueous two-phase solutions of associative polyacrylamide copolymers and poly(ethylene glycol)

被引：0
|
作者：
Abu-Sharkh, BF [1 ]
Hamad, EZ
Ali, SA
机构：
[1] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia
[2] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2003年 / 89卷 / 05期
关键词：
aqueous two-phase system; hydrophobic modification; poly(ethylene glycol); phase coexistence; associative copolymers;
D O I：
10.1002/app.12306
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The influence of hydrophobe content and type on the phase coexistence curves of aqueous two-phase polymer systems containing poly(ethylene glycol) and associative polyacrylamide copolymers has been investigated. The top phase was poly(ethylene glycol)-rich while the bottom phase was rich in the copolymer. Increased intramolecular association resulting from increased hydrophobe content was found to increase compatibility of the two polymers in the bottom phase. Large size asymmetry was found to be an important factor in determining the binodal curve. (C) 2003 Wiley Periodicals, Inc.
引用
收藏
页码：1351 / 1355
页数：5
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