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Synthesis and properties of acrylic‐based superabsorbent
Author(s) -
Chen XuePing,
Shan GuoRong,
Huang Jian,
Huang ZhiMing,
Weng ZhiXue
Publication year - 2004
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.20052
Subject(s) - superabsorbent polymer , monomer , acrylic acid , absorption of water , polymer chemistry , acrylamide , materials science , polymerization , chemical engineering , polymer , ionic strength , suspension (topology) , chemistry , composite material , organic chemistry , aqueous solution , mathematics , homotopy , pure mathematics , engineering
Acrylic‐based superabsorbent polymers with partial‐neutralized acrylic acid were synthesized by inverse suspension polymerization. The effects of reaction parameters, including the concentration of crosslinking agent and initiator, the neutralization degree of monomer, the monomer concentration, and phase ratio of a system, on the water absorption have been investigated. Furthermore, to improve the properties of salt‐resistance and antielectrolyte for the polymer, acrylamide monomer containing nonionic and hydrophilic groups was introduced into the system, which can suppress the salt effect and homoion effect. The water absorption Q 5/3 is proportional to the reciprocal of ionic strength, 1/ S , which follows Flory's elasticity gel theory. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 619–624, 2004