含酯基的咪唑功能化离子液体在水中的聚集行为研究

ompared with traditional ionic liquids (ILs), N - ester appended imidazolium task - specific ionic liquids have excellent biodegradation, and show a broad prospect in practical industrial applications. Without the physical and chemical properties of the ionic liquids based solution, these task - specific ionic liquids can't be applied well in industry. 3 kinds of N - ester appended imidazolium task - specific ionic liquids {[mimCH2COOCnH2n +1] Cl (n = 6, 7, 8) have been synthesized and purified for the use of this work, and these 3 kinds ionic liquid are reported for the first time. Densities and conductivities for aqueous ester appended ionic liquids solutions were measured at 298.15 K. With the aid of the pseudophase model of micellization, the critical aggregation concentrations and the related physicochemical properties of the ILs have been calculated. The results show that the aggregation of ILs is tuned by adjusting the alkyl chain. The alkyl chain-ion inductive and hydrocarbon-hydrocarbon interactions were the main driving force for the aggregation.