2009 Fiscal Year Final Research Report
Construction of Direct Observation System for Water hydrating Polymers and Its Application to Analysis of Phase Transition of Water in Polymer Solids
| Project/Area Number |
20750175
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Polymer/Textile materials
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| Research Institution | University of Toyama |
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Principal Investigator |
GEMMEI Makoto University of Toyama, 理工学研究部, 助教 (70334711)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 高分子材料物性 / 水の相転移挙動 / 高分子の機能 |
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| Research Abstract |
Phase transition behavior of water sorbed into various polymers (with low water content) and adhesion of fibroblast to their polymers were examined. The adhesion behaviors did not have a correlation with chemical structure, glass transition temperature, and water content of the polymers. Temperature variable infrared spectroscopy revealed the existence of phase transition of a part of the sorbed water, which was generally assigned as "non-freezing (non-freezable) water" by differential scanning calorimetry. Phase transition observed here were not only crystallization and melting but also condensation, vapor deposition, sublimation, revapor-deposition, and vaporization. These results gave a new insight for water structure in water-polymer systems. However, there was no correlation between the fibroblast adhesion to the polymers and the phase transition behavior of water.
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