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Theory of electrophoretic mobility of polyelectrolyte chains
Author(s) -
Muthukumar Murugappan
Publication year - 1994
Publication title -
macromolecular theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 56
eISSN - 1521-3919
pISSN - 1022-1344
DOI - 10.1002/mats.1994.040030105
Subject(s) - polyelectrolyte , electrophoresis , chain (unit) , crossover , gaussian , debye , chemistry , debye length , chemical physics , statistical physics , chromatography , polymer , thermodynamics , computational chemistry , physics , organic chemistry , ion , quantum mechanics , computer science , artificial intelligence
An explicit formula is derived for the electrophoretic mobility of a linear polyelectrolyte chain in terms of the molecular weight, Debye length and solvent quality. The nature of the crossover between different regimes as the salt concentration and molecular weight are varied is presented. The effect of chain statistics intermediate between the Gaussian and rodlike limits on the electrophoretic mobility is analysed for the first time.