Poly(N-isopropylacrylamide) (PNIPAM) is never hydrophobic

被引：261

作者：

Pelton, Robert ^{[1
]}

机构：

[1] McMaster Univ, Dept Chem Engn, Hamilton, ON L8S 4L7, Canada

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2010年 / 348卷 / 02期

关键词：

PNIPAM LCST hydrophobicity; SODIUM DODECYL-SULFATE; AQUEOUS-SOLUTIONS; TEMPERATURE; WATER;

D O I：

10.1016/j.jcis.2010.05.034

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

PNIPAM chains have hydrophobic and hydrophilic domains below and above the LCST. Temperature dependent interactions between PNIPAM and solutes arise because of changes in the local environment around the hydrophobic isopropyl domains. Below the LCST the isopropyl groups are surrounded by water, whereas above the LCST the hydrophobic groups are in contact with both water and polymer segments. Contrary to numerous claims in the literature, PNIPAM is not a hydrophobic material at temperatures above the LCST. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：673 / 674

页数：2

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