期刊
CATALYSIS TODAY
卷 257, 期 -, 页码 297-304出版社
ELSEVIER
DOI: 10.1016/j.cattod.2014.07.021
关键词
Radical chain reactions; Kinetic modeling; Choline oxidation; Reaction mechanism; Redox polymerization; Ionic liquids
资金
- COST Action (UBIOCHEM) [CM0903]
Kinetics of decomposition of persulfate activated by choline in aqueous solution has been studied. Additionally, the products of choline degradation were analyzed by H-1 NMR spectroscopy, and betaine aldehyde was identified as the main oxidation product. Thus, radical-chain redox mechanism is postulated to explain experimental results. The mechanism was successfully verified using kinetic modeling approach. Moreover, it was found that due to formation of complex of itaconic acid and choline chloride, the salt solubility of the acid in water was increased. Finally, free-radical polymerization of itaconic acid initiated by persulfate in aqueous solution of the choline salt yielded poly(itaconic acid) with higher molecular weight and increased polydispersity. (C) 2014 Elsevier B.V. All rights reserved.
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