EFFECT OF CHAIN AGGREGATION AND IONIC INTERACTIONS ON THE PROTON DISSOCIATION EQUILIBRIA OF WEAK POLYACIDS

被引：7

作者：

CESARO, A

SAGUI, MC

机构：

[1] POLYBIOS RES CTR,TECHNOL BIOPOLYMERS LAB,I-34012 TRIESTE,ITALY

[2] INT CTR THEORET PHYS,I-34100 TRIESTE,ITALY

[3] UNIV NACL SAN LUIS,IMASL,RA-5700 SAN LUIS,ARGENTINA

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1992年 / 58卷

关键词：

D O I：

10.1002/masy.19920580105

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 theoretical interpretation of the dissociation behavior of weak polyacids is given. Incorporation of conformational variability in the free energy of a polyelectrolyte system extends the validity of the counterion condensation theory to cases in which cooperative transitions and/or aggregation phenomena take place. Comparison of the theoretical predictions with experimental data on ionic polysaccharides, either natural or derivatives, is presented.

引用

页码：39 / 61

页数：23

共 26 条

[1]

Brant D. A., 1968, MACROMOLECULES, V1, P291

[2]

Brant DA, 1982, CARBOHYD POLYM, V2, P232

[3]

CESARO A, 1989, MAKROMOL CHEM-RAPID, V10, P547

[4] THERMODYNAMICS OF THE PROTON DISSOCIATION OF NATURAL POLYURONIC ACIDS [J].