A new correlation of viscosity and conductivity for the polyelectrolyte solutions of poly(sodium styrene sulphonate) (PSSNa) in N,N-dimethylformamide plus water

被引：11

作者：

Cherif, Emna ^{[1
,2
]}

机构：

[1] Univ Tunis El Manar, Phys Matiere Molle & Modelisat Electromagnet LR99, Fac Sci Tunis, Tunis, Tunisia

[2] Univ Tunis, Inst Preparatoire Etud Ingenieurs Tunis, Tunis, Tunisia

来源：

PHYSICS AND CHEMISTRY OF LIQUIDS | 2021年 / 59卷 / 02期

关键词：

Walden's law; polyelectrolyte; activation energy; poly(sodium styrene sulphonate); DILUTE-SOLUTIONS; BEHAVIOR;

D O I：

10.1080/00319104.2019.1706177

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 effects of temperature and concentration on the reduced Walden's law of solutions of poly(sodium styrene sulphonate) (PSSNa) in N,N-dimethylformamide + water (DMF/W) were examined at various temperatures between 20 degrees C and 60 degrees C and concentration levels between 0.1 and 1 g/l. The effects of temperature were described by an Arrhenius-type equation. The intrinsic Walden product [sigma eta] and the Huggins constant of Walden, k(sigma eta), were calculated and studied. Then, d(ln [sigma eta])/d(1/T) were calculated as the parameter for chain flexibility and molecule conformation. These results showed that the intrinsic Walden's law product does not decrease linearly with increasing temperature for all concentrations of PSSNa.

引用

页码：288 / 297

页数：10