Synthesis and water absorbency of crosslinked superabsorbent polymers

A series of novel copolymer superabsorbents based on monomer acrylamide (AM), potassium methacrylate (KMA), and 2‐hydroxyethyl methacrylate (HEMA) were prepared by copolymerization using ammonium persulfate (APS) as an initiator and N,N‐methylenebisacrylamide (MBA) as a crosslinking agent. The synth...

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Bibliographic Details
Published in:Journal of applied polymer science 2002-08, Vol.85 (8), p.1795-1801
Main Authors: Raju, K. Mohana, Raju, M. Padmanabha, Mohan, Y. Murali
Format: Article
Language:English
Subjects:
acrylamide
Applied sciences
crosslinking agent
Exact sciences and technology
Miscellaneous
N,N‐methylenebisacrylamide
N-methylenebisacrylamide
Organic polymers
Physicochemistry of polymers
Properties and characterization
superabsorbent polymer
water absorbency
water retention
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Summary:A series of novel copolymer superabsorbents based on monomer acrylamide (AM), potassium methacrylate (KMA), and 2‐hydroxyethyl methacrylate (HEMA) were prepared by copolymerization using ammonium persulfate (APS) as an initiator and N,N‐methylenebisacrylamide (MBA) as a crosslinking agent. The synthetic variables (the monomer concentration, crosslinker concentration, and initiator concentration) were also studied. The experimental results of superabsorbent polymers (SAPs) show a better absorbency in both water and NaCl solutions. The copolymers were characterized by IR spectroscopy. The water retention in the soil was enhanced using the above superabsorbents. The use of SAPs for the growth of groundnut plants was also investigated. SAPs can be considered for water‐managing materials for agriculture and horticulture purposes in desert and drought‐prone areas. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 1795–1801, 2002
ISSN:0021-8995
1097-4628
DOI:10.1002/app.10731