Journal of Physical Chemistry, Vol.98, No.21, 5481-5486, 1994
Excluded-Volume Effects and Internal Chain Dynamics in Giant Polymer-Like Lecithin Reverse Micelles
We report a detailed analysis of data from static and dynamic light scattering experiments with polymer-like lecithin water-in-oil microemulsions. We show that a theoretical treatment of the static structure factor using concepts from polymer physics, which include chain statistics appropriate for excluded-volume interactions in semiflexible classical polymers, yields a quantitative description of the Q dependence of the scattering intensity I(Q) from the giant polymer-like lecithin reverse micelles present in these solutions. We demonstrate that we can study "internal" micellar chain dynamics and that the dynamic structure factor exhibits a universal behavior similar to classical polymer solutions.
Keywords:ANGLE NEUTRON-SCATTERING;LIGHT-SCATTERING;CETYLTRIMETHYLAMMONIUM BROMIDE;WORMLIKE CHAINS;SEMIDILUTE;BEHAVIOR;MICROEMULSIONS;POLYDISPERSITY;FLEXIBILITY;DEPENDENCE