Abstract
The rheology of aqueous solutions of polyvinyl alcohol (PVA) was studied by the method viscometry. The values of the verification coefficients were estimated depending on both the concentration of PVA, and on the average molecular weight of the PVA itself. It is shown that in water a solution of low molecular weight PVA (70-140 kDa) with a concentration of up to 0.035% dominant is the interaction of polymer chains with water (the first belief coefficient), and above 0.035% PVA, the interaction of polymer chains between itself (the second confidence factor).
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