Synthesis And Characterization Of Copolymers As Pour Point Depressants And Viscosity Index Improvers For Lubricating Oil
DOI:
https://doi.org/10.36329/jkcm/2022/v2.i9.13298Keywords:
lubricating oils, viscosity index, Pour Point depressantsAbstract
poly (1-hexene-co-maleic anhydride) was prepared by free radical polymerization of maleic anhydride with 1-hexene. 1- tetradecanol and 1-hexadecanol were reacted with the poly(l-hexene-co-maleic anhydride)to produce poly (1-hexene-co-ditetraclecyl maleate) and poly (1-hexene-co-dihexadecyl maleate) respectively . Poly (methyl methacrylate-co-maleic anhydride) was prepared from the reaction maleic anhydride with methyl methacrylate by free radical polymerization, then the resulting polymer was reacted with 1-tetradecanol to give poly(methyl methacrylate-co-maleic anhydride). the three prepared polymers was characterized by FTIR and HNMR spectroscopy, while the thermal stability and molecular weight measured by Thermogravimetric analysis TGA and Gel permeation chromatography GPC. the prepared polymers was used to improves the pour point depressant and viscosity index for three base oils from Dura Refinery. the results show the efficiency of the three polymers to improve the pour point and Viscosity index of the base oil
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