Abstract:The mechanism of formation of resinous compounds during use of industrial and motor oils was studied by IR and NMR spectroscopy. Based on a comparative analysis of the spectra of samples of the used oil and the resins separated from it and the spectrum of fresh oil it was concluded that, besides oxidative mechanism, resinous compounds are formed in the oils as a result of oligomerization of the hydrocarbons. The molecules of the latter suffer, in the thermomechanical deformation process, profound stereostructu… Show more
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