COLL 417 |
| Raj Rajagopalan, Department of Chemical Engineering, Department of Chemical Engineering, University of Florida, Gainesville, FL 32611-6005 |
| Interactions between adsorbed polymer layers have been studied using computer simulations, analytical and numerical mean-field theories, and experiments for a number of years. However, the theoretical and computational determination of interaction forces have often been based on an incorrect thermodynamic formalism. The basic thermodynamic formalism required for thin polymer films is not very different from the one that has been used for thin liquid films -- a topic to which Professor Radke has made numerous contributions. In this talk, we outline the thermodynamic issues relevant to polymer layers (particularly from the point of view of lattice mean-field models), recast the fundamental equations for free energies, derive appropriate relations for film tension and interfacial tension, and illustrate their implications to forces between adsorbed polymer layers. |
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ACS Award in Colloid and Surface Chemistry Symposium Honoring Clay Radke
Division of Colloid and Surface Chemistry |