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Low shear viscosity of dilute polymer solutions
Author(s) -
Chiou C. S.,
Gordon R. J.
Publication year - 1980
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690260520
Subject(s) - viscometer , viscoelasticity , polymer , shear (geology) , viscosity , thermodynamics , relaxation (psychology) , measure (data warehouse) , shear viscosity , materials science , chemistry , polymer chemistry , physics , composite material , computer science , psychology , social psychology , database
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.