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Low shear viscosity of dilute polymer solutions

โœ Scribed by C. S. Chiou; R. J. Gordon

Publisher
American Institute of Chemical Engineers
Year
1980
Tongue
English
Weight
373 KB
Volume
26
Category
Article
ISSN
0001-1541

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โœฆ Synopsis

Abstract

A modification of a viscometer originally proposed by Zimm and Crothers in 1962 is presented, which may be used to measure ultra low shear viscosity for highly dilute polymer solutions. This may provide useful information on polymer coil dimensions and relaxation time. Use of the low shear viscosity data leads to very large values of relaxation time induced by polymer addition to a concentration of only 2 to 3 wppm. This finding is consistent with the marked viscoelastic effects exhibited by these solutions.

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