Annealed and Quenched Polyelectrolytes.

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Dec 1, 1990 - FeI - kTNf 'I3 um ) pei/kT - f 'I3 um. (6). The crucial point is that the chemical potential pel has a nonmonotonic variation with the charge density f.
EUROPHYSICS LETTERS

1 December 1990

Europhys. Lett., 13 (7), pp. 623-628 (1990)

Annealed and Quenched Polyelectrolytes. E. RAPHAEL(*) (**) and J.-F. JOANNY (**) (*) Laboratoire de SpectromBtrie et d’lmagerie Ultrasonores UniversitB Louis Pasteur - 8 rue Blaise Pascal, 67070 Strasbourg Cedex (**) Institut Charles Sadron - 6 rue Boussingault, 67083 Strasbourg Cedex (received 18 June 1990; accepted in final form 4 October 1990) PACS. 36.20 - Macromolecules and polymer molecules.

Abstract. - We study theoretically the behaviour of two types of polyelectrolytes in a poor solvent. If the number of charges and their position along the chain is quenched, the collapse is well described by a blob model introduced by Khokhlov. Weak polyacids or polybases have however an annealed structure where the charges are