2012 Fiscal Year Final Research Report
Direct Observation and Analysis of Polymer Chain Structures in Soft lnterfaces
| Project Area | Molecular Soft-Interface Science |
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| Project/Area Number |
20106009
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Yamagata University |
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Principal Investigator |
KUMAKI Jiro 山形大学, 大学院・理工学研究科, 教授 (00500290)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 走査プローブ顕微鏡 / 高分子構造・物性 / 超薄膜 / ナノ材料 / 表面・界面物性 |
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| Research Abstract |
The structures and properties of polymer monolayers were studied by atomic force microscopy (AFM) in order to understand the two-dimensional (2D) ultimate structures of polymer soft-interfaces. In this study, (1) we succeeded to observe the melting behaviors of 2D crystals in situ at the molecular level, and found the significant melting temperature depression up to 90℃. (2) We also succeeded to visualize the isolated chains of a polymer of a high glass transition temperature (Tg) solubilized in a monolayer of alow Tg polymer, and evaluated the chain conformations in the 2D monolayer. (3) We also found that a blend monolayer phase separated via 2D spinodal decomposition mechanism for the first time. (4) Polymer isolated chains deposited on a substrate were observed in situ at temperature much higher than the bulk Tg of the polymers. (5) Vapor phase deposition polymerization on mica was also studied by AFM.
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