2011 Fiscal Year Final Research Report
Creation of new supramolecules based on multi-stranded polymer chains
| Project/Area Number |
21350059
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Polymer chemistry
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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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| Co-Investigator(Kenkyū-buntansha) |
KITAYAMA Tatsuki 大阪大学, 大学院・基礎工学研究科, 教授 (60135671)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 非共有結合高分子 / 原子間力顕微鏡 |
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| Research Abstract |
We previously found that the stereocomplex formed from stereoregular poly (methyl methacrylate)s (PMMA) are a supramolecule composed of a multi-stranded helix of the polymer chains by direct observation with high-resolution atomic force microscopy. The multi-stranded helix can be a building block of new polymeric supramolecular structures. In this study, we synthesized stereoblock copolymers composed of uniform isotactic and syndiotactic PMMAs, and the resultant stereocomplexes were evaluated by AFM and the effect of the primary structures on the stereocomplexes was discussed. Stereocomplex of poly (lactic acid), which is not a multistranded helix but alternative packing of chiral PLAs, was also studied. The molecular image of the PLA stereocomplex was successfully observed by AFM and the mechanism of stereocomplex formation of PLAs was discussed.
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