Electric birefringence of AOT/water solutions |
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| Affiliation: | 1. Department of Physiology, Oxidative Stress and Free Radical Biology Laboratory, University of Calcutta, University College of Science and Technology, 92, APC Road, Kolkata 700 009, West Bengal, India;2. Department of Physiology, Vidyasagar College, Kolkata 700 006, India;3. DBT-IPLS Section, University College of Science, Technology and Agriculture, 35, Ballygunge Circular Road, Kolkata 700019, India;4. Department of Cellular and Structural Biology, University of Texas Health Science Centre at San Antonio, TX, USA;5. Department of Physiology, Vidyasagar College for Women, Kolkata 700 006, India |
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| Abstract: | The variation of the Kerr constant versus surfactant concentration in a solution of AOT in water was studied. The observed behavior shows changes when aggregates begin to form. allowing to measure the critical micelle concentration, with results coincident with those obtained through static light scattering and electric conductivity measurements. For concentrations higher than the critical micellar concentration the birefringence decreases proportional to the aggregates concentration The micelle contribution to birefringence is estimated to be negative. |
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