| Project/Area Number |
23655106
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer chemistry
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| Research Institution | Kyushu University |
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Principal Investigator |
TANAKA Keiji 九州大学, 大学院・工学研究院, 教授 (20325509)
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| Co-Investigator(Kenkyū-buntansha) |
SHUNDO Atsuomi 九州大学, 大学院・工学研究院, 助教 (40585915)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 光ピンセット / 粒子追跡法 / マイクロレオロジ- / ソフトマテリアル / 粘弾性関数 / 不均一性 |
|---|
| Research Abstract |
A novel methodology using optical tweezers for local rheological measurements in soft materials has been established. By using this, we have found that there exists a spatial heterogeneity in the viscoelastic properties of a supramolecular hydrogel, a lyotropic liquid crystal, etc. Notably, the heterogeneity in a worm-like micelle solution strongly depended on the measurement frequency. Also, it was found that a sol-to-gel transition process of a supramolecular polymer solution was accompanied by a homogenization of the physical properties.
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