Theoretical detemination of Physical Properties For Poly VinyI Pyrolidone

In this research A simple model has been presented for polyvinyl pyrrolidone aqueous solutions to predict wave amplitude in C.R.O by using Ulrasonic technician (ho,, non-radiated, hri, irradiated, and h*i, ils a function of h**). The use of this model reflects a good result for the samples of PVPD aqueous solutions, which was radiated with gaflrma rays of 150 Rad/min, dose for 22 min at room temperature, therefore this factor, will be constant in this work. These data were used to develop a new method to predict the wave amplitude in C.R.O. The model can be used to calculate the ho,, hi, for a given primary amplitude of wave in C.R.O ( h-o, h*), the distance between receiver and ultrasonic wave sender x, and PVPD concentration v. From this model we can calculate absorption coefficient (c) for non radia ted and irradiated PVPD as a function of h,*, h i,, and v. This prediction method give a good agreement with the measured values, where the absolute average error for wave amplitude in C.R.O for non-radiated h,- is (1.02), wave amplitude for iradiated in C.R.O h*i is (0.14), and wave amplitude in C.R.O hxir as a function of h* is (0.25). The absolute average error for non-radiated (a) is (0.45), and irradiated (c) is (1.04) for all data points of PVPD.