Complexation of polyacrylamide and poly(N-isopropylacrylamide) with poly(acrylic acid). The temperature effect

被引：53

作者：

Staikos, G ^{[1
]}

Karayanni, K ^{[1
]}

Mylonas, Y ^{[1
]}

机构：

[1] INST CHEM ENGN & HIGH TEMP CHEM PROC,ICE,HT FORTH,GR-26500 PATRAS,GREECE

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 1997年 / 198卷 / 09期

关键词：

D O I：

10.1002/macp.1997.021980920

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We present potentiometric and viscometric results on the interpolymer complexation between polyacrylamide (PAAM) and poly(N-isopropylacrylamide) (PNIPAAM) with poly(acrylic acid) (PAA) in dilute aqueous solution. A potentiometric procedure for the determination of the complex stoichiometry in monomeric units has been proposed. The temperature dependence of the strength of the complexes formed has been investigated. From the results obtained it has been concluded that hydrogen bonding is the main factor stabilizing the PAAM/PAA complex, strengthened by decreasing the temperature while the much stronger PNIPAAM/PAA complex, strengthened by increasing the temperature, is stabilized by hydrophobic interaction.

引用

页码：2905 / 2915

页数：11

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