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Electroviscous effect in dilute suspensions of ionic polymer latices
Author(s) -
Yamanaka J.,
Hashimoto S.,
Yamaguchi T.,
Saeki S.,
Tsubokawa M.,
Matsuoka H.,
Kitano H.,
Ise N.
Publication year - 1993
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990300216
Subject(s) - viscometer , ubbelohde viscometer , viscosity , polymer , ionic bonding , suspension (topology) , materials science , counterion , capillary action , shear thinning , solvent , reduced viscosity , relative viscosity , chemical engineering , chemistry , polymer chemistry , composite material , organic chemistry , ion , mathematics , homotopy , pure mathematics , engineering
The viscosity of dilute suspensions of ionic polymer latices was measured using a variable‐shear capillary viscometer, a rotational viscometer and an Ubbelohde viscometer. The viscosity of the suspension was much larger than the Einstein theoretical value and showed a marked shear‐thinning behaviour, due to the electroviscous effect. The dependence of the reduced viscosity of latex suspensions on latex concentration, salt concentration and solvent was essentially the same as that of linear ionic polymer solutions. Counterion effect was also investigated.