処理後のサイドチェーンの除去による結合ポリマーの電気伝導性の顕著な改善
James F Ponder1, Shawn A Gregory2, Amalie Atassi2
1George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
Journal of the American Chemical Society
|January 10, 2022
まとめ
結合ポリマー (CP) からサイドチェーンの除去は,水解によって電気伝導性を大幅に高めます. このプロセスは,電荷载体密度を高め,局所化を軽減し,高度なデバイスのための高度な導電性CPフィルムを可能にします.
科学分野:
- 材料科学
- ポリマー化学
- オーガニック電子
背景:
- 結合ポリマー (CP) は,酸化還元装置と固体装置に不可欠です.
- CPsを溶解させるにはサイドチェーンが必要で,これは電気活性物質を減少させ,相互作用を阻害することで性能を阻害する可能性があります.
- CPプロパティの最適化には サイドチェーンのインパクトを最小限に抑えることが重要です
研究 の 目的:
- 結合ポリマーの電気伝導性に対する加工後のサイドチェーンの除去の影響を調査する.
- サイドチェーンの水解後に導電性の強化の背後にあるメカニズムを理解する.
- 電子特性を改善するために,高性能コポリマーにサイドチェーンの除去を適用する.
主な方法:
- エステル溶解でサイドチェーンが除去されます.
- ポリマーフィルムの体積と形態の特徴
- 電気化学分析,X線光電子スペクトロスコーピー (XPS),および電荷輸送モデリング.
主要な成果:
- サイドチェーン水解は化学的にドーピングされたCPフィルムの電気伝導性を有意に増加させた.
- 伝導性の向上は,電荷载体密度の増加と電荷载体局所化の減少に起因し,ドーピングの増加には起因しない.
- ProDOT-alt-EDOT共ポリマーに適用された水解により,導電性は ~700 S/cmまで得られた.
結論:
- 処理後のサイドチェーンの除去は,CP伝導性を高めるための効果的な戦略です.
- この方法は,溶解するサイドチェーンによって課される制限を克服します.
- このアプローチにより,高伝導性の結合ポリマーフィルムを様々な用途で処理することができます.
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