Complexation between poly(methacrylic acid) and cationically modified polyacrylamide

被引：6
|
作者：
Liu, SX [1 ]
Fang, Y [1 ]
Hu, DD [1 ]
Lü, HW [1 ]
机构：
[1] Shaanxi Normal Univ, Dept Chem, Xian 710062, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2000年 / 16卷 / 03期
关键词：
fluorescence anisotropy; complexation; poly(methacrylic acid); cationically modified polyacrylamide;
D O I：
10.3866/PKU.WHXB20000305
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：
The complexation between poly(methacrylic acid) (PMAA) and cationically modified polyacrylamide (QCPAM) was investigated by fluorescence anisotropy measurements, fluorescence probe studies and fluorescence quenching techniques. It has been demonstrated that the complexation occurs between pH 2 and 8, and the best conditions for complexation are pH 4 and complex ratio 1: 1(PMAA: QCPAM, in monomer unit), In addition, along with the complexation, the conformation of PMAA changed dramatically. The pH and complexation dependences of the conformation of PMAA may find some uses in design and synthesis of "intelligent" polyelectrolyte gels.
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页码：214 / 220
页数：7
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