Sorption and perturbation of water at polyelectrolyte interfaces. Paper 5 - effects of water isotopic dilution

被引：5

作者：

Deng, CS ^{[1
]}

Sammon, C ^{[1
]}

Yarwood, J ^{[1
]}

机构：

[1] Sheffield Hallam Univ, Mat Res Inst, Sheffield S1 1WB, S Yorkshire, England

来源：

POLYMER | 2003年 / 44卷 / 07期

关键词：

water diffusion; polyetherethersulphones; isotopic dilution;

D O I：

10.1016/S0032-3861(03)00045-4

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 have carefully examined the possible role of local oscillator coupling in D2O(or H2O), and locally concentrated evanescent electric fields in creating a large intensity perturbation of the v(OD) band of water in the polyelectrolytes SPEES/PES (S-5, S-8 and S2O). Isotopic dilution experiments lead to the same (or higher) extinction coefficient while an ATR/transmission experimental comparison also gives a similar intensity. We conclude that neither effect is responsible for enhanced P values, and that these must be caused by strong polymer-water interactions at the anionic SO3- groups on these polymers. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：2057 / 2065

页数：9

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