Sample Sidebar Module

This is a sample module published to the sidebar_top position, using the -sidebar module class suffix. There is also a sidebar_bottom position below the menu.

Sample Sidebar Module

This is a sample module published to the sidebar_bottom position, using the -sidebar module class suffix. There is also a sidebar_top position below the search.
الكيمياء العضوية

Synthesis, Characterization and performance evaluation of Polystearyl methacrylate and Polystearyl methacrylate_co_methylmethacrylate as an additive for Lubricating Oil

التفاصيل
المجموعة: الكيمياء العضوية
الزيارات: 3310

Maysoon A.hamad

Email: maysoon_a.hamad@yahoo.com

Supervisor Name : Dr. Mohammad R. Ahmed   &   Dr. Abdul Halim A-K Mohammed

Abstract:

Methacrylate polymers are widly used as additives in lubricating oils, as pour point depressants and viscosity index improvers. In this study, homopolymer of Polystearyl methacrylate and Polystearyl methacrylate_co_methylmethacrylate with molar ratios of 30:70, 50:50 and 70:30 were synthesized and characterized. The free radical polymerization was carried out at 70 °C in solution using toluene as solvent and 2, 2′-azobisisobutyronitrile (AIBN) as initiator. All products were characterized by FTIR, 1H-NMR spectroscopy. The obtained results showed the efficacy of the additives as viscosity index improvers, pour point depressants