Oligo(ethylene oxide) side-chain steric screening effects on conductimetric properties of grafted poly(4-vinylpyridinium) salts in aqueous solutions

被引：8

作者：

Benmansour, K

Mansri, A

François, J

机构：

[1] Univ Pau & Pays Adour, CNRS, UR ESA 5067, Lab Physico Chim Polymeres,LRMP, F-64000 Pau, France

[2] Univ Tlemcen, LRM, Dept Chem, Tilimsen 13000, Algeria

来源：

POLYMER INTERNATIONAL | 2003年 / 52卷 / 09期

关键词：

polyelectrolyte; water-soluble polymers; conductivity; Manning model; steric effect;

D O I：

10.1002/pi.1142

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A set of poly[N-oligo(ethyleneoxide)yl 4-vinylpyridinium tosylate] (P4VOEOOTs) has been prepared by spontaneous polymerization of 4-vinylpyridine. This method gives a grafted polyelectrolyte having a positive charge on every backbone pyridinic moiety. The P4VP15Ts, P4VP164Ts, P4VP350Ts and P4VP750Ts aqueous solution conductivities were determined in the concentration range from 6 x 10(-4) to 10(-2) M at 25 degreesC. The variation of the conductivity versus concentration of the investigated system exhibits typical polyelectrolyte behaviour. The polyelectrolyte mobility was found to be dependent on the oligo(ethylene oxide) (OEO) side-chain length. Manning's rod-like model fails to describe these results. A simple steric effect is proposed to explain the influence of the OEO length. (C) 2003 Society of Chemical Industry.

引用

页码：1506 / 1514

页数：9

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[1] An electrochemical study of the action of a poly(vinylpyridine) derivative as inhibitor for corrosion of iron in 1M H2SO4 [J].