Abstract
AbstractConditions were determined for selective alkaline transesterification of methyl 9(10)‐carbomethoxystearate. With 2,2‐dimethylpentanol and 2‐ethylhexanol, the corresponding alkyl 9(10)‐carbomethoxystearates were obtained in good yield. These two mixed alkyl diesters, along with other alkyl esters of mono‐9(10)‐, di‐ and tricarboxystearic acids prepared by conventional methods, were evaluated as lubricants. Several esters compared favorably with dioctyl sebacate used as the control. The esters had high viscosity indices and low American Society for Testing and Materials slopes. The pour point of purified dimethylpentyl 9(10)‐carbomethoxystearate is below −70 C. Several esters have antiwear properties when added to the control oil.
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