2011 Fiscal Year Final Research Report
Nonequilibrium pattern formation and growth in a thinning soap film studied by quantitative phase microscopy
| Project/Area Number |
21550023
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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 |
Physical chemistry
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| Research Institution | Hiroshima City University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 石鹸膜 / 定量位相顕微鏡 / 超薄膜 / 非平衡 |
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| Research Abstract |
A vertical soap film was made by pulling rapidly a metallic frame out of an additive free soap solution. Nonequilibrium pattern formation and growth in the thinning soap film was observed on a reflection interference microscope. No nonequilibrium pattern was observed in soap films made from three types of surfactant aqueous solutions including 0.1 M sodium oleate aqueous solution. Quantitative phase microscopy allowed us to find emergence of a large step over 400 nm in a thinning soap film made from 0.1 M sodium oleate aqueous solution.
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