|Title||Dynamics of semidilute polyelectrolyte solutions|
|Publication Type||Journal Article|
|Year of Publication||1994|
|Authors||M Rubinstein, RH Colby, and AV Dobrynin|
|Journal||Physical Review Letters|
|Pagination||2776 - 2779|
We apply dynamic scaling to both unentangled and entangled semidilute polyelectrolyte solutions. The unentangled semidilute regime can span three to four decades of polymer concentration in low-salt solutions. In this range we predict such phenomena as a concentration independent self-diffusion coefficient, relaxation time that is a decreasing function of concentration c, and explain the empirical Fuoss law for the viscosity η∼c1/2. In the low-salt entangled regime we predict the concentration independent relaxation time and the viscosity η∼c3/2 that are observed experimentally.
|Short Title||Physical Review Letters|