CIESC Journal

• RESEARCH PAPERS • 上一篇    下一篇

含盐聚电解质溶液的分子热力学模型

张波; 蔡钧; 刘洪来; 胡英   

  1. Department of Chemistry, East China University of Science and Technology, Shanghai 200237,
    China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2002-06-28 发布日期:2002-06-28
  • 通讯作者: 张波

Molecular Thermodynamic Model for Polyelectrolyte Solutions with Added Salts

ZHANG Bo; CAI Jun; LIU Honglai; HU Ying   

  1. Department of Chemistry, East China University of Science and Technology, Shanghai 200237,
    China
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-06-28 Published:2002-06-28
  • Contact: ZHANG Bo

摘要: A molecular thermodynamic model of polyelectrolyte developed previously was extended to
polyelectrolyte solutions with added salts. Thermodynamic properties, such as activity
coefficients of polyelectrolytes or added salts and osmotic coefficients of solvent, of a
number of aqueous mixtures of polyelectrolytes and salts are analyzed with the proposed
model. Successful correlation is obtained in the range of moderate or higher polyion
concentration. For the same sample, thermodynamic properties of polyelectrolytes with and
without simple electrolytes can be predicted mutually using parameters from regression
data.

关键词: polyelectrolyte solution;molecular thermodynamic model;activity coefficient;osmotic coefficient

Abstract: A molecular thermodynamic model of polyelectrolyte developed previously was extended to
polyelectrolyte solutions with added salts. Thermodynamic properties, such as activity
coefficients of polyelectrolytes or added salts and osmotic coefficients of solvent, of a
number of aqueous mixtures of polyelectrolytes and salts are analyzed with the proposed
model. Successful correlation is obtained in the range of moderate or higher polyion
concentration. For the same sample, thermodynamic properties of polyelectrolytes with and
without simple electrolytes can be predicted mutually using parameters from regression
data.

Key words: polyelectrolyte solution, molecular thermodynamic model, activity coefficient, osmotic coefficient