Swelling and de-swelling kinetics of gelatin hydrogels in ethanol-water marginal solvent |
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| Authors: | Boral Shilpi Gupta Amar Nath Bohidar H B |
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| Institution: | aPolymer and Biophysics Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India |
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| Abstract: | Controlled osmotic swelling and de-swelling measurements have been performed on gelatin, a polyampholyte, hydrogels suspended in water-ethanol marginal solvent at room temperature (20 degrees C) where the alcohol concentration was changed from 0 to 100% (v/v). The change in gel mass was monitored as function of time until osmotic equilibrium was established with the surrounding solvent. It was observed that osmotic pressure of polymer-solvent mixing, pi(m)
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| Keywords: | Gelatin Physical gels Osmotic swelling Ethanol–water binary solvent |
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