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Effect of concentration and pH of solutions on the absorbency of polyacrylate superabsorbents
Author(s) -
Kang Hongmei,
Xie Jianjun
Publication year - 2003
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.11756
Subject(s) - aqueous solution , polymer chemistry , materials science , methylene blue , chemistry , polymerization , nuclear chemistry , chemical engineering , polymer , composite material , organic chemistry , photocatalysis , engineering , catalysis
Polyacrylate superabsorbent (PAS) was synthesized by aqueous solution polymerization crosslinked by N , N ‐methylene bisacrylamide. The effect of pH and concentration of several solutions on absorbency ( Q ) of PAS was studied. The results showed that the absorbency increased at first and then decreased with the increase of the solution's pH; the summit of the absorbing curve was attained when pH was about 6.25. The relation between absorbency and pH could be represented by a quadratic equation and the square difference was relatively small. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 494–499, 2003