ガラス型ポリマーの室温メカノクロミック活性化:スピロピランポリカーボネートの合成と特徴付け
Yuval Vidavsky, Steven J Yang, Brooks A Abel
1Schulich Faculty of Chemistry , Technion - Israel Institute of Technology , Haifa 3200003 , Israel.
Journal of the American Chemical Society
|June 28, 2019
まとめ
この研究は,高性能ポリカーボネートプラスチックにおける室温メカノクロミック活性化を示しています. 構造材料の損傷を早期に検出でき 安全性と耐久性を高めます
科学分野:
- 材料科学
- ポリマー化学
- スマート素材
背景:
- メカノクロームポリマーは,力反応分子 (メカノフォール) を通じて損傷検出の可能性を提供します.
- 構造プラスチックでの以前の応用は,色変化に先立つ脆性の故障のために制限されていました.
研究 の 目的:
- 高ガラス化温度 (Tg) のビスフェノールAポリカーボネートで室温メカノクローム活性化を実現する.
- 構造プラスチックにメカノクロミックな機能を組み込むための効率的な方法を開発する.
主な方法:
- ポリカーボネートにおけるコモノマーとしてダイヒドロキシスピロピランをポリマー化することによって,メカノクロミックな機能が組み込まれている.
- ストレス,変形,時間に対するメカノクロミックな反応を調査した.
- 大量の分散なしにメカノクロミックな機能を組み込むための新しいラミネートアプローチを示した.
主要な成果:
- ポリカルボネートで室温でメカノクロミックな活性化を達成し,その熱力学的性質を保持します.
- 負荷履歴がポリマー鎖のストレスの蓄積にどのように影響するかについての洞察を得ました.
- 効率的なメカノクロミック材料の統合のためのラミネート方法が成功しました.
結論:
- ポリカルボネートなどの構造ポリマーでは,室温のメカノクローム活性化が可能である.
- 新しい製法と加工方法により 機械色のスマート素材の応用が進んでいます
- この研究は,エンジニアリングプラスチックにおける実用的な損傷警告システムへの道を開きます.
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