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- 林 主愛
- Department of Science and Technology, Graduate School of Engineering, Nagasaki University
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- 田畑 直哉
- Department of Advanced Engineering, Graduate School of Engineering, Nagasaki University
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- 佐々野 創
- Department of Advanced Engineering, Graduate School of Engineering, Nagasaki University
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- 村上 裕人
- Division of Materials Science, Graduate School of Engineering, Nagasaki University
書誌事項
- タイトル別名
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- Synthesis and Properties of Polyurethane Crosslinked by Polyrotaxane Consisting of Monoaminocyclodextrin
抄録
<p>A polyurethane (PU) crosslinked by a polyrotaxane (PRX), which consists of monoamino-α-cyclodextrin(amCyD) and poly(ethylene glycol)4000 (PEG4000), was designed to decrease the formation of multiple crosslinks from one CyD. The capping reaction of the pseudo-PRX containing amCyD was achieved by a click reaction. The filling ratio of amCyD in the PRX was ca. 74%. The PU crosslinked by the PRX(PU-PRXam(74)) was prepared by a prepolymer method. The thermal and physical properties of PU-PRXam(74) were compared with those of the PUs crosslinked by PRXs consisting of half-methylated CyD(PU-PRXMe(43) and PU-PRXMe(63)). The degree of swelling of PU-PRX-am(74) was ca. 1.3 times larger than those of PU-PRXMes, suggesting the decrease in the multiple crosslinks from one CyD. The DSC and dynamic viscoelastic measurements revealed that PU-PRXam(74) shows a unique relaxation after its glass transition. In the tensile test results, PU-PRXam(74) showed the best elongation among the PU-PRXs whereas the tensile strength was lower than the others. This result is also evidence of the decrease in the multiple crosslinks from one CyD.</p>
収録刊行物
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- 日本ゴム協会誌
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日本ゴム協会誌 95 (1), 1-7, 2022
一般社団法人 日本ゴム協会
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詳細情報 詳細情報について
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- CRID
- 1390855345476382080
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- ISSN
- 18840442
- 0029022X
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可