Products Cited in Publications Worldwide 31P-NMR-analysis-of-thermal-decomposition-of-tributylmethylphosphonium-dimethylphosphate

31P-NMR-analysis-of-thermal-decomposition-of-tributylmethylphosphonium-dimethylphosphate

Francisco Fuentes; Jonathan Heidema1; Saravanan Ramasamy; Scott Williams

Abstract

Zinc dialkyldithiophosphates (ZDDPs) are widely used anti-wear oil additives that have been shown to reduce the conversion efficiencies of catalytic converters in automobiles and to harm the environment in general. Ionic liquids (ILs) are one type of alternative anti-wear additives that have been widely researched in recent years. Among the ILs of interest is tributylmethylphosphonium dimethylphosphate (PP), which has been found to have superior friction-reducing properties as compared to ZDDP under some conditions. We have heated ZDDP and PP samples for various lengths of time to temperatures up to 200 ˚C. The thermal degradations have been compared by utilizing 31P nuclear magnetic resonance techniques. The results suggest that PP may perform better as a friction-modifier than ZDDP in some situations involving high temperatures.

Keywords

tributylmethylphosphonium dimethylphosphate ; zinc dialkyldithiophosphate (ZDDP) ; 31P nuclear magnetic resonance (31P NMR) ; thermal decomposition ; ionic liquids (ILs)

Purchased from AmBeed

A10951620445-88-997%

Tributyl(methyl)phosphonium dimethyl phosphate

296.0/500g

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