Premium
High‐temperature resistant superabsorbent based on poly(acrylic acid) with triallylammonium chloride as crosslinking agent
Author(s) -
Zhang Xiaoyun,
Wang Xiangpeng,
Zhang Sisi,
Wu Wei
Publication year - 2015
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.41243
Subject(s) - potassium persulfate , acrylic acid , distilled water , swelling , superabsorbent polymer , polymer chemistry , thermogravimetric analysis , monomer , polymerization , nuclear chemistry , materials science , persulfate , solution polymerization , fourier transform infrared spectroscopy , potassium , polyelectrolyte , salt (chemistry) , chemical engineering , chemistry , organic chemistry , composite material , chromatography , polymer , catalysis , engineering
A novel high‐temperature resistant superabsorbent was prepared by solution polymerization of partially neutralized acrylic acid (AA), using triallylammonium chloride as crosslinker, potassium persulfate as initiator. The factors that influence the water‐absorbing capacity at 25 and 200°C such as mass concentration of monomer, mass ratio of crosslinker to AA, mass ratio of initiator to AA, and neutralization degree were investigated. The structure of the superabsorbent was characterized by Fourier transform infrared, thermogravimetric analysis, and scanning electron microscopy. The optimum conditions were obtained and the swelling ratios in distilled water and 1 wt % of NaCl solution could reach 841 and 74 g/g at 300°C, respectively. The superabsorbent also showed high swelling rate and good salt resistance. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41243.