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The accelerated degradation of aqueous polyacrylamide at low temperature
Author(s) -
Gao Jianping,
Yu Jiugao,
Wang Wei,
Lin Tong
Publication year - 1998
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/(sici)1097-4628(19980725)69:4<791::aid-app18>3.0.co;2-s
Subject(s) - persulfate , ammonium persulfate , polyacrylamide , potassium persulfate , degradation (telecommunications) , aqueous solution , chemistry , hydrogen peroxide , redox , sodium persulfate , potassium , inorganic chemistry , nuclear chemistry , polymer chemistry , catalysis , organic chemistry , polymerization , polymer , telecommunications , computer science
The accelerated degradation of aqueous polyacrylamide at low temperature was studied. The selected degradation agents included several peroxides, such as potassium persulfate (K 2 S 2 O 8 ), ammonium persulfate ((NH 4 ) 2 S 2 O 8 ), hydrogen peroxide (H 2 O 2 ), and the potassium persulfate–sodium thiosulfate (K 2 S 2 O 8 –Na 2 S 2 O 3 ) redox system. The redox system showed the highest degradation rate at the first 2 hours, but its final degradation level was lower than that of potassium persulfate. The degradation temperature, concentration of potassium persulfate and polyacrylamide, and original molecular weight of polyacrylamide all affected the degradation rate and final degradation level. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 791–797, 1998