Clarification of "arrested melting behavior" of side chains of one-ring-one-chain type polyrotaxane derivatives
| Project/Area Number |
26410130
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Polymer chemistry
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| Research Institution | Shinshu University |
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Principal Investigator |
ARAKI Jun 信州大学, 学術研究院繊維学系, 准教授 (10467201)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | ポリロタキサン / スライディング・グラフトコポリマー / シクロデキストリン / 一環一置換誘導体 / 束縛融解挙動 / 一置換CD誘導体 / クリックケミストリー / 末端封鎖反応 / モノ置換シクロデキストリン / 一環一置換ポリロタキサン誘導体 / 一環一置換 / 溶融固体 |
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| Outline of Final Research Achievements |
A synthetic procedure for a novel polyrotaxane derivative called "one-ring-one-chain type polyrotaxane" was established. Monoazido-alpha-CD was synthesized and purified utilizing reversed phase column chromatography in several gram scale. The obtained monoazido-CD was mixed with terminally aminated PEG to yield an inclusion complex, followed by terminal end-cap reaction with sodium 2,4,6-trinitrobenzene sulfonate to obtain a polyrotaxane with monoazido-CD rings. The obtained polyrotaxane was further subjected to click reactions with mPEG having terminal propargyl groups, obtaining a desired one-ring-one-chain type polyrotaxane. The obtained product indicated a so-called "arrested melting behavior", i.e. a sharp exotherm around the melting temperature of side chain polymers (mPEG2000 in this case) without melting of the whole bulk polymer.
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Report
(4 results)
Research Products
(68 results)
