%0 Journal Article %A Aghaie, Mehran, E., Mazandarani, H., Sadeghi ghari %T Investigation of shear stability of commercial polymer of viscosity index improver for determination of engine oil optimal formulation %J Journal of Physical & Theoretical Chemistry %V 16 %N 2 %P 29-35 %D 2019 %R %U https://sanad.iau.ir/fa/Article/818670