2012 Fiscal Year Final Research Report
Rheology Control of Nano-particle Dispersionsby Associating Polymers
| Project/Area Number |
22550195
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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 |
Polymer/Textile materials
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| Research Institution | Kyoto University |
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Principal Investigator |
KOGA Tsuyoshi 京都大学, 大学院・工学研究科, 教授 (80303866)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 会合高分子 / ナノ粒子 / レオロジー / 組み替え網目理論 / 分子動力学シミュレーション |
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| Research Abstract |
On rheology control of spherical nanoparticle dispersions by associating polymers, we found an optimum ratio of the number of nanoparticles and polymer chains for the gel formation by molecular dynamics simulations. We also found that, by increasing the chain stiffness, the zero-shear viscosity increases, and the shear thickening behavior is enhanced. On elastic properties of nanocomposite gels, we found by coarse-grained molecular simulations that the molecular origin of the high extensibility of the nanocomposite gels is the dissociation of polymers from clay particles by uniaxial elongation.
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