17. Calculate the molecular weight of polyvinyl acetate
17. Calculate the molecular weight of polyvinyl acetate in acetone, using the data of the viscometric method:
The concentration of solution C, kg / m 3 1,0 3,0 5,0 7,0
The specific viscosity η beats 0,14 0,47 0,84 1,3
Constants of the Mark – Houvink equation: K = 4.2⋅10 –5, α = 0.68.
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Questions and problems from the manual:
"Laboratory Workshop on Colloid Chemistry" Nekrasov AP, Veretenchenko BA, Kharkov NTU "KhPI", 2004
"Characteristic properties of disperse systems" Nekrasov AP, Kharkov, 1996
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