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2011•Journal of Jiangxi Normal UniversityRequires access

The Synthesis, Characterization and Study on Behavior of 4-Dimethylamiopryidinium Ionic Liquids

Cunxiong Li

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Abstract

Six kinds of pyridine ionic compounds were prepared after anion exchange methods from two intermediates,which were obtained by alkylation of 4-dimethylaminopyridine,among which five were ionic liquids.The synthesized compounds were characterized by1H NMR,IR,TG and DSC analysis meanwhile water absorption and solubility were also studied.The results showed that the thermal decomposition temperature of ionic liquids were all above 300 ℃,absorbing trace water when placed in air,easily soluble in polar solvents,insoluble or slightly soluble in small polar solvents.

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What this paper is about

Six kinds of pyridine ionic compounds were prepared after anion exchange methods from two intermediates,which were obtained by alkylation of 4-dimethylaminopyridine,among which five were ionic liquids.The synthesized compounds were characterized by1H NMR,IR,TG and DSC analysis meanwhile water absorption and solubility were also studied.The results showed that the thermal decomposition temperature of ionic liquids were all above 300 ℃,absorbing trace water when placed in air,easily soluble in polar solvents,insoluble or slightly soluble in small polar solvents.

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Available abstract

Six kinds of pyridine ionic compounds were prepared after anion exchange methods from two intermediates,which were obtained by alkylation of 4-dimethylaminopyridine,among which five were ionic liquids.The synthesized compounds were characterized by1H NMR,IR,TG and DSC analysis meanwhile water absorption and solubility were also studied.The results showed that the thermal decomposition temperature of ionic liquids were all above 300 ℃,absorbing trace water when placed in air,easily soluble in polar solvents,insoluble or slightly soluble in small polar solvents.

Key concepts: Ionic liquid, Chemistry, Solubility, Ionic bonding, Alkylation, Thermal decomposition, Pyridine, Polar

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