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Degradation of polyacrylamide molecules in aqueous solutions by high‐speed stirring
Author(s) -
Nagashiro Waichi,
Tsunoda Teruo
Publication year - 1977
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1977.070210427
Subject(s) - polyacrylamide , degradation (telecommunications) , aqueous solution , viscosity , molecule , chemical engineering , intrinsic viscosity , chemistry , materials science , polymer chemistry , polymer , organic chemistry , composite material , computer science , telecommunications , engineering
It has been observed that the viscosity of polyacrylamide (PAM) solution decreased with an increase in high‐speed stirring time. The viscosities of PAM solutions decrease initially and then remain constant as the stirring time is increased. The final values depend on the stirring speed. This decrease was assumed to be due to a change in the dissolved state and/or the degradation of PAM molecules. It was discovered through experimentation that the molecular weight decreased, implying that the PAM molecules were degraded.