Polyelectrolyte Multilayers Studied by Electron Paramagnetic Resonance (EPR) Spin-Label Technique

被引：0
|
作者：
Uwe Lappan
Brigitte Wiesner
Stefan Zschoche
Ulrich Scheler
机构：
[1] Leibniz-Institut für Polymerforschung Dresden e. V.,
来源：
Applied Magnetic Resonance | 2013年 / 44卷
关键词：
Electron Paramagnetic Resonance; Electron Paramagnetic Resonance Spectrum; Electron Paramagnetic Resonance Signal; Spin Label; Multilayer Film;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A nitroxide spin label has been covalently attached to the polyelectrolyte poly(ethylene-alt-maleic acid) (P(E-alt-MA)) to study the interaction between this weak polyanion, the oppositely charged strong polycation poly(diallyldimethylammonium chloride) (PDADMAC) and water in swollen polyelectrolyte multilayers (PEM) by electron paramagnetic resonance (EPR) spectroscopy. If the spin-labeled polyanion has been used for the preparation of every double layer, the growth of the PEM film can be monitored by quantitative EPR. On the other hand, if the spin-labeled polyanion has been selectively placed in different layers in the PEM film the influence of the environment such as pH of the swelling medium of the mobility of the polyelectrolyte molecules positioned in the selected layer can be investigated.
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页码：181 / 188
页数：7
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