| 研究課題/領域番号 |
21K14677
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分35020:高分子材料関連
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| 研究機関 | 北海道大学 |
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研究代表者 |
崔 昆朋 北海道大学, 化学反応創成研究拠点, 特任助教 (30843198)
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| 研究期間 (年度) |
2021-04-01 – 2022-03-31
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| 研究課題ステータス |
中途終了 (2021年度)
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| 配分額 *注記 |
4,680千円 (直接経費: 3,600千円、間接経費: 1,080千円)
2022年度: 2,470千円 (直接経費: 1,900千円、間接経費: 570千円)
2021年度: 2,210千円 (直接経費: 1,700千円、間接経費: 510千円)
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| キーワード | tough hydrogels / non-yielding deformation / structure evolution / X-ray scattering |
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| 研究開始時の研究の概要 |
Strong and tough hydrogels are desirable in many fields, such as tissue engineering and soft robotics. Expanding the non-yielding region of tough gels is extremely important for practical applications. Here we plan to propose a strategy for expanding the non-yielding region of tough hydrogel.
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| 研究実績の概要 |
In the past year, we combined the small-angle X-ray scattering (SAXS) and the mechanical method to study the structure change of the tough and non-yielding hydrogels. Through SAXS, we obtained the network deformation in the scale of 50 nanometers. We found that the nanoscale deformaiton of gel is affine to the macroscopic deformation of bulk gel. Through mechanical chemistry method, we confirmed that the chain scission does not occur during deformation.We performed cyclic loading to check how energy dissipates during deformation. In addition, we checked the role of hyperconnectivity on the network deformation. Our current results suggest that the interplay between hyperconnectivity and stress transfer between two networks is important to the nonaffine deformation.
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