2009 Fiscal Year Final Research Report
Nonequilibrium dynamics of thin films with large deformations
| Project/Area Number |
18540403
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biophysics/Chemical physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OKUZONO Tohru The University of Tokyo, 大学院・工学系研究科, 特任講師 (10314725)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 膜 / ソフトマター / 非平衡 / ダイナミクス |
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| Research Abstract |
The condition that a skin phase appears at the free surface of polymer solution in the drying process has been clarified theoretically. A theoretical expression for the evaporation rate including the elastic effect due to gelation has been obtained. A simple model has been proposed which describes drying processes of polymer droplets on a solid substrate. This model enables a theoretical prediction concerning the shape of polymer film deposited after drying. Numerical simulations of multi-droplet systems have been performed. The results show the existence of interference effects among the droplets.
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