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APPARENT ELONGATIONAL VISCOSITY OF DILUTE POLYMER SOLUTIONS

Korean Journal of Chemical Engineering, November 1996, 13(6), 554-558(5), 10.1007/BF02706020
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Abstract

Apparent elongational viscosity studies were made on dilute solutions of high molecular weight polymers using a fiber spinning apparatus designed for low shear viscosity liquids with substantial elongational effects. The experimental method involved the flow of solutions of polyacrylamide and poly(ethylene oxide) from a tube into an evacuated vessel. Experimental results showed that the apparent elongational viscosity obtained from the jet shape increased linearly with the stretch rate.

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