書誌事項
- タイトル別名
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- Synthesis and Properties of Self-healing Polyolefin
- ジコ シュウフクセイ ポリオレフィン ノ ゴウセイ ト セイシツ
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<p>This article describes a new class of self-healing materials formed by the copolymerization of ethylene and anisyl-substituted propylenes using a sterically demanding half-sandwich scandium catalyst. The copolymerization proceeded in a controlled fashion, affording unique multi-block copolymers composed of relatively long alternating ethylene-alt-anisylpropylene sequences and short ethylene−ethylene units. By controlling the molecular weight and varying the anisyl substituents, a series of copolymers that show a wide range of glass-transition temperatures (Tg) and mechanical properties have been obtained. The copolymers with Tg below room temperature showed remarkable self-healability, being able to autonomously self-heal upon mechanical damage not only in a dry environment but also in water and aqueous acid and alkaline solutions, while those with Tg around or above room temperature exhibited excellent shape-memory property. The unique mechanical properties may be ascribed to the phase separation of the crystalline ethylene−ethylene nanodomains from the ethylene-alt-anisylpropylene matrix.</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 94 (2), 52-57, 2021
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
- 1390850700865827200
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- NII論文ID
- 130008027610
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- NII書誌ID
- AN00269207
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- ISSN
- 18840442
- 0029022X
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- NDL書誌ID
- 031273543
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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
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可