Adsorption of poly(N-ethyl-4-vinyl pyridinium bromide) onto Langmuir-Blodgett films built up from amphiphilic polymers

被引：0
|
作者：
Pergushov, DV [1 ]
Oertel, U
Pilch, B
Schwarz, S
Nagel, J
机构：
[1] Moscow State Univ, Fac Chem, Dept Polymer Sci, Moscow 119899, Russia
[2] Inst Polymer Res Dresden EV, D-01069 Dresden, Germany
来源：
MACROMOLECULAR SYMPOSIA | 2001年 / 164卷
关键词：
D O I：
10.1002/1521-3900(200102)164:1<145::AID-MASY145>3.0.CO;2-1
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 interaction of a strong cationic polyelectrolyte, poly(N-ethyl-4-vinyl pyridinium bromide), with Langmuir-Blodgett (LB) films built up from four monolayers of amphiphilic derivatives of the alternating copolymers of maleic acid and alkenes (one of the monolayers was formed by the amphiphilic copolymer containing pyrenyl groups as fluorescent labels) was examined. Transformations of absorbance spectra and quenching of fluorescence of the LB films were detected after their contact with aqueous solutions of the cationic polyelectrolyte. These changes were attributed to the adsorption of poly(N-ethyl-4-vinyl pyridinium bromide) onto such films. The efficiency of this process was found to be rather sensitive to the variations in pH of the surrounding medium: adsorption of the cationic polyelectrolyte onto the LB films was pronounced in basic media while it became rather weak in acidic media.
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页码：145 / 158
页数：14
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