ポリ (2,2-ビス) トリフルオロメチル (-4,5-ディフルオロ-1,3-二酸化物-コテトラフルオロエチレン) (テフロンAF) はどの程度性があるのでしょうか?
Hong Zhao1, Kamal Ismail, Stephen G Weber
1Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
Journal of the American Chemical Society
|October 14, 2004
まとめ
テフロンAF 2400フィルムは,クロロフォームなどの溶媒に曝露すると,プラスチック化され,溶液の拡散を大幅に増加させます. この性ポリマーは,
科学分野:
- ポリマー科学は,ポリマー科学である.
- マテリアルサイエンス 材料科学
- 化学工学の化学工学について
背景:
- テフロンAF 2400は,安定した,浸透性のあるフッ素ポリマーです.
- 溶液の輸送/抽出媒介としてのその可能性は未開拓です.
研究 の 目的:
- テフロンAF 2400を新しい輸送/抽出媒介として調査する.
- 溶媒への曝露が輸送特性に与える影響を理解する.
主な方法:
- テフロンAF2400フィルムを通してクロロフォーム溶液中の様々な溶液の輸送行動を研究しました.
- ポリマーフィルム内のベンゼンの分割と拡散を測定した.
- テフロンAF2400フィルムにKrytox FSHの可塑化効果を調査した.
主要な成果:
- クロロフォームは高濃度 (1.13M) で吸収され,フィルムをプラスチック化します.
- ベンゼンの拡散係数は,クロロフォームバランスフィルムでは3桁増加した.
- 極性溶解物3ヒドロキシピリジンの分割は,媒介によって著しく影響を受けた.
- クリトックスFSHは薄膜をプラスチック化し,Tgを -40°Cまで低下させ,分子認識を可能にしました.
- クリトックスFSHとの非共性関連は,3-ヒドロキシピリジンの分布比を41倍増加させた.
結論:
- テフロンAF 2400の輸送特性は,溶媒への曝露に大きく依存しています.
- 溶媒の吸収により,ポリマーがプラスチック化され,溶液の拡散が促進されます.
- テフロンAF 2400フィルムの性性は,有機溶剤の浸透により減少する.
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