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Effects of repeat unit charge density on the physical and electrochemical properties of novel heterocationic poly(ionic liquid)sстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 24 февраля 2021 г.
- Авторы: Cotessat Merlin, Flachard Dimitri, Nosov Daniil, Lozinskaya Elena I., Ponkratov Denis O., Schmidt Daniel F., Drockenmuller Eric, Shaplov Alexander S.
- Журнал: New Journal of Chemistry
- Том: 45
- Год издания: 2021
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 53
- Последняя страница: 65
- DOI: 10.1039/d0nj04143b
- Аннотация: We report the synthesis and structure/property correlations of a series of eight poly(ionic liquid)s (PILs)obtained from sequential AA + BB polyaddition by copper(I)-catalyzed azide–alkyne cycloaddition andthe subsequent N-alkylation reaction. The different repeat units contain one to four ion pairs, with oneto four bis(trifluorosulfonyl)imide (TFSI) anions and one or two types of ammonium, imidazolium or1,2,3-triazolium counter-cations. Their physical, ion conducting and electrochemical properties arediscussed based on the repeat unit charge density and structure of the cationic moieties. Thecomparison of several pairs of polyelectrolytes revealed that ionic conductivity is dependent on (1) theratio between the number of charge carriers per monomer unit and the number of surroundingatoms/groups that can solvate the ions and (2) the nature of the cation. The highest conductivity (1.8105 S cm1 at 25 1C) was reached when PILs contain two 1,2,3-triazolium cations that are separated byan oxyethylene spacer. The incorporation of an additional type of cation (either imidazolium orammonium with 1,2,3-triazolium) in one PIL allows its cathodic limit to be increased up to 0.4 V vs.Li+/Li (70 1C) and the oxidation instability of 1,2,3-triazolium cations to be overcome.
- Добавил в систему: Понкратов Денис Олегович
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