2010 Fiscal Year Final Research Report
Molecular Mechanism of Sol -Gel Transformation
| Project Area | Creation of non-equilibrium soft matter physics: Structure and dynamics of mesoscopic systems |
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| Project/Area Number |
18068010
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
TANAKA Fumihiko Kyoto University, 大学院・工学研究科, 教授 (50107695)
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| Co-Investigator(Kenkyū-buntansha) |
KOGA Tsuyoshi 京都大学, 大学院・工学研究科, 准教授 (80303866)
KANEDA Isamu 酪農学園大学, 酪農学部, 教授 (30458129)
INDEI Tsutomu 京都大学, 福井謙一記念研究センター, 研究員 (30420409)
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| Project Period (FY) |
2006 – 2010
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| Keywords | ゾル-ゲル転換 / ゲル化時間 / 協同水和 / 共貧溶媒性 / 競合的水素結合 / 組替え網目 / 歪み硬化 / 応力極大 |
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| Research Abstract |
The hydration model of water-soluble polymers is refined to cope with multilayer hydration, cooperative and competitive hydration, effect of stereoregularity and copolymerization in relation to LCST phase separation, sol-gel transition and volume phase transition of gels. Effect of cononsolvency in mixed solvents was clarified. Shear thickening, strain hardening, stress overshoot, banding and fracture of the networks of PNIPAM chains were studied on the basis of the transient network theory and their molecular mechanisms were clarified.
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