REVERSIBLE THERMOTHICKENING OF AQUEOUS POLYMER-SOLUTIONS

被引:104
作者
HOURDET, D
LALLORET, F
AUDEBERT, R
机构
[1] Université Pierre et Marie Curie, Laboratoire de Physicochimie Macromoléculaire, CNRS URA 278, Paris cédex 05
关键词
THERMOTHICKENING; ASSOCIATIVE POLYMER; WATER-SOLUBLE POLYMER;
D O I
10.1016/0032-3861(94)90390-5
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A thermally induced associative polymer was developed by grafting lower critical solution temperature side chains onto a water-soluble backbone. Based upon the thermodynamic properties of the pendent chains, acting as reversible crosslinkers with varying temperature, such a system was prepared from a poly(ethylene oxide)-modified poly(acrylic acid) (PAA-g-PEO). In aqueous solution this polymer provides an enhancement of the viscosity on heating, the extent of which can be controlled by polymer concentration, grafting ratio and salt concentration.
引用
收藏
页码:2624 / 2630
页数:7
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