Synthesis and ordered aggregation of 1-vinylimidazole bromide ionic liquid
| Autor: | Yamei ZHAO, Mengdan HUO |
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| Jazyk: | čínština |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Xi'an Gongcheng Daxue xuebao, Vol 35, Iss 3, Pp 17-23 (2021) |
| Druh dokumentu: | article |
| ISSN: | 1674-649X 1674-649x |
| DOI: | 10.13338/j.issn.1674-649x.2021.03.003 |
| Popis: | In order to study the aggregation behavior and thermodynamic mechanism of ionic liquid in solution, the 1-vinyl-3-tetradecylimidazole bromide ([C14VIM+][Br-]) functionalized ionic liquid with aggregation behavior was synthesized by a one-step method. With water, methanol, ethanol, isopropanol, acetone, ethyl acetate, chloroform, and toluene as solvents, nine self-assembly systems with different polarities were designed. Under certain conditions and solution systems, [C14VIM+][Br-] ordered aggregates with different morphologies such as spherical, clustered, petal-like and bamboo-leaf-like shapes were obtained for the first time. Studies on the aggregation behavior of [C14VIM+][Br-] in different solution systems show that [C14VIM+][Br-] in a pure solvent system, the critical aggregation concentration (CAC) and counter-ion binding degree (β) of the system increase with temperature, and the movement ability of ions is enhanced.[C14VIM+][Br-] in a binary mixed solvent system, the CAC value of the system decreases with temperature, and the β value increases with the polarity reduction, which is conducive to the formation of large aggregates. |
| Databáze: | Directory of Open Access Journals |
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