基于三胺的宏循环的超分子聚合成电活性纳米管
Flavio Picini1, Susanne Schneider1,2, Odile Gavat1
1SAMS Research Group, Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 67000 Strasbourg, France.
Journal of the American Chemical Society
|April 9, 2021
概括
研究人员合成了一种新型的宏循环, 在这些先进的材料中发现了扩展的电子移位.
科学领域:
- 超分子化学
- 材料科学
- 有机电子产品
背景情况:
- 基于三胺的宏循环是先进材料的关键组成部分.
- 了解超分子聚合对于开发新型结构至关重要.
- 胺功能化为量身定制的材料特性提供了途径.
研究的目的:
- 合成一种新的S6对称三胺宏循环.
- 研究其超分子聚合和纳米管结构.
- 分析所得到的超分子聚合物的电子特性.
主要方法:
- 宏观循环的融合和模块化合成.
- 在o-二二中进行超分子聚合.
- 使用光谱,显微镜,X射线散射和分子建模来阐明结构.
- 对电子移位进行光电化学分析.
主要成果:
- 成功合成具有胺功能的S6-对称六合酶[16].
- 将超分子聚合成纳米管结构的演示.
- 通过多种先进技术阐明纳米管结构.
- 在聚合物中的宏循环内和之间有扩展电子移位的证据.
结论:
- 合成的宏循环自组装成明确的纳米管状超分子聚合物.
- 纳米管结构促进了显著的电子移位,对有机电子有希望.
- 这项工作为设计功能超分子材料提供了一个新的平台.
相关概念视频
01:20Anionic Chain-Growth Polymerization: Overview
2.3K
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
2.3K
01:04Anionic Chain-Growth Polymerization: Mechanism
2.2K
The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic anion, such as butyl lithium, initiates the polymerization process by attacking the π bond of the vinylic monomer. As a result, a carbanion, stabilized by the electron‐withdrawing group, is generated. The resulting carbanion acts as a Michael donor in the propagation step and attacks the second vinylic monomer, which acts as a Michael...
2.2K