通过非共价相互作用通过芳香循环 Schiff 基的单壁碳纳米管的分散
Lun Li1, Pengfei Zhou1, Jiali Wen1
1Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
Molecules (Basel, Switzerland)
|July 13, 2024
概括
一个新的非共价策略有效地分散聚合单壁碳纳米管 (SWCNTs) 使用芳香循环希夫基和超声波. 这种方法提高了SWCNT的溶解性和应用潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 有机化学 有机化学
背景情况:
- 单壁碳纳米管 (SWCNTs) 具有出色的性能,但具有较差的溶解性和聚合性,限制了它们的实际应用.
- 开发有效的分散方法对于释放SWCNT在各种领域的全部潜力至关重要.
研究的目的:
- 引入一种非共价策略来分散聚合SWCNTs.
- 调查使用芳香循环希夫基,特别是OMM,作为SWCNTs的分散剂.
- 阐明分散剂和SWCNT之间的相互作用机制.
主要方法:
- 使用ATR-FT-IR,C-NMR和HRMS合成和表征芳香循环希夫基 (OMM).
- 用OMM和超声波处理在二甲基甲胺 (DMF) 中分散SWCNT.
- 使用UV对NIR,光 (FL),拉曼光谱,原子力显微镜 (AFM) 和传输电子显微镜 (TEM) 进行SWCNT分散的表征.
- 计算模拟以了解相互作用机制.
主要成果:
- 合成的OMM,尽管溶解性差,但通过超声波辅助在DMF中有效分散聚合的SWCNT.
- 光谱和显微分析证实了OMM的SWCNTs的相互作用和分散.
- 计算机模拟显示,π-π,C-H·π和单双 (lp) ·π相互作用是分散机制的原因.
- 半导体SWCNTs,包括像 (7,5), (8,6), (12,1) 和 (9,7) 这样的特定基拉性,显示出对溶解的偏好.
结论:
- 一种使用芳香循环希夫基和超声波的简单非共价策略已被开发用于SWCNT分散.
- 这些发现提供了对调节SWCNT分散的分子相互作用的见解.
- 这种方法为制备分散剂提供了一个有希望的途径,以促进SWCNT的更广泛使用.
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