2014 Fiscal Year Final Research Report
Amplification of topology effects of polymers by self-assembly
| Project/Area Number |
23685022
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Polymer chemistry
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TEZUKA Yasuyuki 東京工業大学, 大学院理工学研究科, 教授 (80155457)
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Keywords | 高分子合成 / 自己組織化 / ミセル / ポリ乳酸 / 環状高分子 |
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| Outline of Final Research Achievements |
Polymeric micelles were prepared from linear poly(methyl acrylate)-b-poly(ethylene oxide)-b-poly(methyl acrylate) and cyclic counterparts. Temperature and salt responses of these micelles were determined by turbidity measurements to disclose that the micelles formed from the cyclic copolymers have higher thermal and salt resistance in comparison with the linear counterparts.
Cyclic homo polylactides and stereoblock polylactides with head-to-head (HH) and head-to-tail (HT) linking orientations were synthesized. DSC measurements showed that the melting temperature of a cyclic PLLA/cyclic PDLA blend was decreased from that of a relevant linear PLLA/linear PDLA blend. Furthermore, the melting temperature of the HH stereoblock PLA increased whereas that of the relevant HT counterpart decreased upon cyclization.
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| Free Research Field |
高分子化学
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