The chemical stability of phosphonium-based ionic liquids under gamma irradiation

被引：19
|
作者：
Morco, Ryan P. [1 ]
Joseph, Jiju M. [1 ]
Wren, J. Clara [1 ]
机构：
[1] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada
来源：
RSC ADVANCES | 2015年 / 5卷 / 36期
基金：
加拿大自然科学与工程研究理事会; 加拿大创新基金会;
关键词：
RADICAL STABILIZATION ENERGIES; BOND-DISSOCIATION ENERGIES; RADIATION-CHEMISTRY; HYDROGEN-ATOMS; RADIOLYSIS; WATER; MIXTURES; CONDUCTIVITIES; VISCOSITIES; EXTRACTION;
D O I：
10.1039/c4ra13115k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effects of gamma-radiation on the physicochemical and ion transport properties of phosphonium-based ionic liquids (ILs) were investigated. Five ILs that have different physical properties of hydrophobicity, viscosity and conductivity were studied. Gaseous radiolysis products were analyzed using GC-MS, and the IL phase was analyzed using UV-vis, NMR, FTIR and Raman spectroscopy, and conductivity measurement. The results show that the ILs are relatively resistant to radiolytic degradation, but measurable quantities of small organic species are formed. These arise from the radiolytic dissociation of the P-C bond in the cation moiety. These small organic molecules induce agglomeration within the IL and this results in substantial changes to some of the IL properties.
引用
收藏
页码：28570 / 28581
页数：12
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