Abstract
The Kerr effect of polyelectrolyte/surfactant mixtures in aqueous solutions has been measured. Investigated materials are: PAMPS (Polymer) and DTAB (surfactant). Two kinds of polymer were employed to assemble the studied systems: one of them ("System I") contains 10% (mol) charged monomer whereas the other one ("System II") contains 25% (mol). Kerr constants ( B ) and mean relaxation times d as a function of the surfactant concentration ( C DTAB ) were determined. B I is always positive whereas B II values are negative before the equivalent, point null in its vicinity and grows with positive values after it. A relationship with tension surface measurements is analysed. System II relaxation times are greater than System I. The influence of the flexibility is taken into account. Electrical conductance measurements are also presented.
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