従来のアルカン溶媒の代替品
Mary L Harrell1, Thomas Malinski1, Coralys Torres-López1
1Department of Chemistry, Texas A&M University , College Station, Texas 77842-3012, United States.
Journal of the American Chemical Society
|October 19, 2016
まとめ
ポリオレフィン (α-olefin) のような炭化水素オリゴーマーは,溶媒混合物におけるヘプタンに安全で揮発性のない代替品を提供します. これらのオリゴーマー溶剤は,ヘプタンに匹敵する優れた性能を示しています.
科学分野:
- 緑の化学
- 溶剤科学
- ポリマー化学
背景:
- ヘプタンなどの従来の低分子量アルカン溶媒は環境と安全性の問題を提起しています.
- 化学プロセスには持続可能で無毒で再利用可能な溶媒の代替材料が必要です
研究 の 目的:
- ヘプタンに適した代替品として,炭化水素オリゴーマー,特にポリオレフィン (PAO) を評価する.
- 熱変形および二相溶媒システムにおけるPAOの性能を評価する.
- ヘプタンと比較してPAOの浸出性,溶解性,および触媒性について調査する.
主な方法:
- PAOとヘプタンの溶解性特性を比較するために,UV可視光譜を用いた.
- 極性溶媒 (メタノール,水性エタノール,DMF) とアセトニトリルとの二相混合物における研究されたPAO
- PAOとヘプタン溶媒におけるアゾ染料イソメリゼーション運動を研究した.
主要な成果:
- PAOはヘプタンと似たような極相への低浸出を示します.
- PAOは特定の染料に対してヘプタンと同様の溶解性を示しています.
- PAOは溶媒の混合物における 有効な洗浄防止剤として機能する.
- アゾ染料のイソメリゼーション率はPAOとヘプタンにおいて,熱的に,およびカルボキシル酸によって触媒化されるとともに同等である.
結論:
- PAOのような炭化水素オリゴマーはヘプタンに有効で,無毒で,揮発性のない,再利用可能な代替品です.
- PAOは,低分子量アルカンの望ましい溶媒特性を維持する.
- これらのオリゴーマー溶剤は,従来の溶剤への依存を軽減し,様々な化学用途に持続可能な代替品を提供します.
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