作者:Ted M. Pappenfus、Andrew J. Helmin、Wyatt D. Wilcox、Sarah M. Severson、Daron E. Janzen
DOI:10.1021/acs.joc.9b01525
日期:2019.9.6
Reactions between 3,4-propylenedioxythiophenes (ProDOTs) and N-alkyl isatins under ambient conditions result in isomerically pure indophenine materials as confirmed by TLC and 1H NMR analysis. The resulting low band gap materials exhibit favorable inter- and intramolecular interactions, high thermal stabilities, low energy electronic transitions, and amphoteric redox behavior.
通过TLC和1 H NMR分析证实,在环境条件下3,4-丙烯二氧噻吩(ProDOT)和N-烷基靛红之间的反应产生异构纯的吲哚芬材料。所得的低带隙材料表现出良好的分子间和分子内相互作用,高热稳定性,低能量电子跃迁和两性氧化还原行为。
Organic species that facilitate charge transfer to or from nanostructures
申请人:Whiteford Jeffery A.
公开号:US20100065783A1
公开(公告)日:2010-03-18
The present invention provides polymeric compositions that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.
The present application can provide a preparation method that can effectively produce a polymer having desired molecular weight characteristics and solubility in a solvent, and having a monomer composition, which is designed freely and variously according to the purpose, without unnecessary components with excellent polymerization efficiency and conversion rates, and a dispersion comprising the polymer formed by the preparation method.
Chain-Growth Polymerization of 2-Chlorothiophenes Promoted by Lewis Acids
作者:Baltasar Bonillo、Timothy M. Swager
DOI:10.1021/ja308498h
日期:2012.11.21
Lewis acids promote the polymerization of several 2-chloroalkylenedioxythiophenes, providing high-molecular-weight conjugated polymers. The proposed mechanism is a cationic chain-growth polymerization, as confirmed by end-capping reactions and a linear correlation of molecular weight with percent conversion. The "living" character of this process was used to prepare new block copolymers.