Preparation of poly vinyl alcohol solutions in polar solvents with calculation of activation energy of viscous from Arrhenius equation

الملخص EN

This paper involved, preparation of solution poly vinyl alcohol (PVA) in polar solvents ( ethanol , water) from ( 298.15 to 348.15) K under atmospheric pressure.

The effect of temperature on viscosity present experimental was studied for solutions poly vinyl alcohol that obtained from experimental data densities in the same temperature ( 298.15 to 348.15 ) K .

and calculate the activation energy of viscosities for these solutions poly vinyl alcohol from arrhenius equation below : (Ea/RT) Ƞ=Ƞ0 exp ……………………………(1) The values of activation energy of solution poly vinyl alcohol in water was 17.496 J while the values of activation energy of solution poly vinyl alcohol in ethanol was 18.237 J.

The different values of activation energy viscosities of these solution due to intermolecular interaction.