Molecular Dynamics In Polymers

Dielectric Dispersion and Molecular Dynamics in Polymer-Surfactant Interaction of PVA with SDS at Microwave Frequency
D.J.S. Anand Karunakaran 1, T.Ganesh*2, M.Maria Sylvester1, P.Senthilkumar3, Pravin Hudge4,
A.C. Kumbharkhane4
1. Post Graduate & Research Department of Physics, Bishop Heber College, Tiruchirapalli,
Tamil Nadu– 620 017
2. Post Graduate & Research Department of Physics, Rajah Serfoji Government College, Thanjavur
Tamil Nadu – 613 005.
3.Department of Physics, Saranathan College of Engineering , Tiruchirapalli – 620 012, Tamil Nadu.
4. School of Physical Sciences, Swami Ramanad Teerth Marthwada University, Nanded, MS – 431606.
(Email ID:[e-mail])
Abstract
The interactions between polymers and surfactants in aqueous

The Physico-chemical mechanism reviewing the composition of one or more polymers with one or more surfactants has the effect of colloidal stability, emulsification, flocculation structuring and suspending properties, rheology control and synergistic effects and formation of micro heterogeneous system [1]. Surfactants forms aggregate in aqueous solution as micelles. The micelle formation takes place over a narrow range of surfactant concentration is called Critical Micelle Concentration(CMC) and with different changes in various physical properties like viscosity, surface tension, osmotic pressure solubilisation capacity, electrical conductivity etc. for a wide variety of solutes. At the CMC, the formation of polymer-surfactant molecular aggregation begins at first with formation of small micelles and grows rapidly over a higher concentration range attains stabilization for a given surfactant concentration. On further increasing above CMC of the surfactant leads to an increase in number of micelles in a monomeric surfactant. The property of surface-active molecules of self-assemble (micelles or vesicles) in dilute solutions the contact between their hydrophobic tail with water having been to minimized, resulting the interior of micelles and the spherical outer surface of vesicles is highly non-polar capable of accommodating other non-polar molecules[2]. The intricate balance of hydrophobic interaction between the polar interaction of ionic head groups, as counterions and with nonpolar side chains promotes this self-association of ionic amphiphilics into micelles, vesicles and