Chain Model for Polyelectrolytes. IV. Skeletal Distribution Effects in Equimolar Polyampholytes

摘要: The chain model for polyelectrolytes developed in the preceding papers of this series is extended to equimolar polyampholytes general skeletal structure. present development differs from that copolymers consisting a regular alternation acidic and basic groups environments individual will depend upon local distribution. This inhomogeniety affects both titration configurational properties, primarily through displacement acid‐base equilibria. In addition, locally inhomogeneous structure can cause either an expansion or contraction at isoelectric point, although strong deviation random copolymerization necessary realize large effect. No experimental data are available with which compare theory, but calculated curve ratio presented hypothetical polyampholyte It found copolymer exhibits more buffer action near point than does similar regularly alternating copolymer, properties effect on increased ionic strength quite corresponding copolymer. pointed out substantial change may be realized by alterations