اخبار و اعلانات

 آمار

تعداد نشریات418
تعداد شماره‌ها9,997
تعداد مقالات83,560
تعداد مشاهده مقاله77,801,329
تعداد دریافت فایل اصل مقاله54,843,945
Ghosh, Pranab, Hoque, Mainul, Karmakar, Gobinda, Das, Malay Kr.. (1396). Dodecyl methacrylate and vinyl acetate copolymers as viscosity modifier and pour point depressant for lubricating oil. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8(2), 197-205. doi: https://doi.org/10.1007/s40090-017-0119-y
Pranab Ghosh; Mainul Hoque; Gobinda Karmakar; Malay Kr. Das. "Dodecyl methacrylate and vinyl acetate copolymers as viscosity modifier and pour point depressant for lubricating oil". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8, 2, 1396, 197-205. doi: https://doi.org/10.1007/s40090-017-0119-y
Ghosh, Pranab, Hoque, Mainul, Karmakar, Gobinda, Das, Malay Kr.. (1396). 'Dodecyl methacrylate and vinyl acetate copolymers as viscosity modifier and pour point depressant for lubricating oil', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8(2), pp. 197-205. doi: https://doi.org/10.1007/s40090-017-0119-y
Ghosh, Pranab, Hoque, Mainul, Karmakar, Gobinda, Das, Malay Kr.. Dodecyl methacrylate and vinyl acetate copolymers as viscosity modifier and pour point depressant for lubricating oil. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1396; 8(2): 197-205. doi: https://doi.org/10.1007/s40090-017-0119-y

Dodecyl methacrylate and vinyl acetate copolymers as viscosity modifier and pour point depressant for lubricating oil

International Journal of Industrial Chemistry
دوره 8، شماره 2، شهریور 2017، صفحه 197-205
نوع مقاله: research article
شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-017-0119-y
نویسندگان
Pranab Ghosh* 1؛ Mainul Hoque1؛ Gobinda Karmakar1؛ Malay Kr. Das2
1Natural Product and Polymer Chemistry Laboratory, Department of Chemistry, University of North Bengal, Darjeeling, 734013, India
2Department of Physics, University of North Bengal, Darjeeling, 734013, India
چکیده
The article presents application of homo polymer of dodecyl methacrylate (DDMA) and its copolymers with vinyl acetate (VA) as multifunctional additives for lubricant formulation. Homo polymer of DDMA and five copolymers of DDMA with VA at different molar ratios were synthesized by free radical polymerization method using azobisisobutyronitrile (AIBN) as initiator. The characterization of the polymers was carried out through FTIR, NMR and GPC (gel permeable chromatography) analysis. The performance of all the polymers as viscosity index improver (VII) or viscosity modifier and pour point depressant (PPD) additive in two different base oils (mineral) were evaluated. The mechanism of action of the polymers as pour point depressant was studied by photo micrographic analysis. Rheological study of the formulated lubricant was also carried out and reported. The thermal stability of the polymers was determined by thermogravimetric analysis (TGA). It was found that thermal stability, VI and molecular weights of copolymers are higher than the homopolymer which showed better PPD property.
کلیدواژه‌ها
Copolymer؛ Molecular weight؛ Viscosity modifier؛ Pour point depressant؛ Rheology
آمار
تعداد مشاهده مقاله: 10


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب