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Dynamics and conformational properties of polyampholytes in external electrical fields: Influence of the charge distribution
Author(s) -
Schiessel Helmut,
Oshanin Gleb,
Blumen Alexander
Publication year - 1996
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.1996.040050103
Subject(s) - chemical physics , distribution (mathematics) , charge (physics) , molecular dynamics , dynamics (music) , materials science , statistical physics , charge density , chemistry , physics , computational chemistry , mathematics , quantum mechanics , mathematical analysis , acoustics
In the present work we study the dynamics and conformational properties of polyampholytes (PAs, polymers containing positive and negative charges) in the presence of external electrical fields. In terms of the Rouse Model of polymer dynamics we obtain for PAs in the so‐called weak coupling limit explicitly the mean square displacement both of the center of mass and of individual beads, and the PAs' end‐to‐end distance. We study both ordered and also random charge distributions along the chains; in the latter case we also consider the role of different correlation lengths.