Progress in synthesis and application of dimer acid
In order to enhance the industrialization level and product competitiveness of dimer acid,the research progress on dimer acid from two aspects of the synthesis and application in recent years were reviewed.Dimer acid can be obtained by catalytic dimerization or thermal dimerization of C18 unsaturated fatty acids through Diels-Alder reaction or carbocation reaction mechanism,and the content of dimer acid can reach more than 98％by molecular distillation.Dimer acid has been used in the synthesis of polyamide resin,polyester compounds,hydrogenated dimer acid and production of lubricants and corrosion inhibitors.Further studies of the synthesis mechanism,synthesis technology and downstream product application of dimer acid should be performed.
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