Lower critical solution temperature in aqueous solutions of N-alkyl-substituted polyacrylamides

被引：103

作者：

Platé, NA ^{[1
]}

Lebedeva, TL ^{[1
]}

Valuev, LI ^{[1
]}

机构：

[1] Russian Acad Sci, AV Topchiev Petrochem Synth Inst, Moscow 117912, Russia

来源：

POLYMER JOURNAL | 1999年 / 31卷 / 01期

关键词：

N-alkyl-substituted polyacrylamides; aqueous solutions; lower critical solution temperature; H-bonds; conformational analysis; Fourier transform infrared spectroscopy;

D O I：

10.1295/polymj.31.21

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 structures and properties of N-alkyl-substituted polyacrylamides (PAA) were studied by FT-IR spectroscopy. For N-alkyl-substituted PAA with lower critical solution temperature (LCST), a specific H-bonded cyclic structure involving alkyl amide units of a polymer and hydroxyl functions of water was observed and found responsible for polymer solubility. The mechanism for the appearance of a LCST in aqueous solution of N-alkyl-substituted PAA is discussed and factors of position of LCST are examined.

引用

页码：21 / 27

页数：7

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