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ラクトンからの持続可能なポリエステルエラストマー:合成,特性,酵素による水解性
Guilhem X De Hoe1, Michael T Zumstein2, Brandon J Tiegs3
1Department of Chemistry, University of Minnesota , Minneapolis, Minnesota 55455-0431, United States.
Journal of the American Chemical Society
|January 17, 2018
まとめ
研究者は再生可能資源から 機械的に強い生物分解性のある 新しいポリエステルエラストマーを開発しました これらの持続可能な素材は 自然環境で簡単に分解できる 石油ベースの弾性物質の 環境に優しい代替品です
科学分野:
- ポリマー化学
- 材料科学
- 持続可能な化学
背景:
- 化学的にクロスリンクされた弾性物質は,優れた温度および溶媒耐性を有しますが,通常は石油由来であり,環境に持続します.
- 従来の弾性物質に持続可能な代替材料が求められていて,使用寿命の終わりに伴う環境問題に対応しています.
研究 の 目的:
- 再生可能な,酵素分解可能な,機械的に競争力のあるポリエステル弾性体を合成する.
- 調節可能な特性と生物分解性を持つ石油ベースの弾性物質の持続可能な代替品を開発する.
主な方法:
- ポリエステルエラストマーの合成は,新しいビス (β-ラクトン) クロスリンクンと星状のポリ (γ-メチル-ε-カプロラクトン) を使用する.
- エラストモアの機械的性質と熱的安定性の特徴
- 酵素による水解と,中性pHと環境に適した温度での生物分解性の調査
主要な成果:
- 新しいビス (β-ラクトン) クロスリンクは,アシル結合の割れ目を促進し,クロスリンクの接点でβ-ヒドロキシエステルを形成した.
- その結果生じたポリエステルエラストモールは,商品のゴムバンドに匹敵する調整可能な機械的性質を示した.
- 材料は高い熱安定性,低いガラス化温度 (-50 °C) を示し,温度に依存する速度で容易に完全な酵素水解を経験しました.
結論:
- この研究は,再生可能資源から高性能で持続可能なポリエステルエラストマーの合成を成功裏に実証しています.
- 開発された弾性物質は機械的に競争力があり,熱的に安定し,酵素的に水分解可能であり,従来の材料に可行で環境に優しい代替品を提供します.
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