Premium
Swelling studies of copolymeric acrylamide/crotonic acid hydrogels as carriers for agricultural uses
Author(s) -
Karadağ Erdener,
Saraydin Dursun,
Çaldiran Yasemin,
Güven Olgun
Publication year - 2000
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(200002)11:2<59::aid-pat937>3.0.co;2-z
Subject(s) - self healing hydrogels , acrylamide , swelling , copolymer , polymer chemistry , ammonium nitrate , potassium , materials science , ethylene glycol , ethylene glycol dimethacrylate , ammonium , diffusion , acrylic acid , chemistry , nuclear chemistry , chemical engineering , polymer , organic chemistry , composite material , physics , engineering , thermodynamics , methacrylic acid
In this study, highly swollen acrylamide/crotonic acid hydrogels (in a rod form) containing some inorganic salts such as ammonium nitrate, potassium nitrate and ammonium sulphate used as fertilizer, an agricultural drug such as Dalapon (sodium 2,2‐dichloropropionate) and two crosslinkers such as ethylene glycol dimethacrylate and 1,4‐butandiol dimethacrylate were prepared by copolymerization of acrylamide and crotonic acid with γ‐radiation. As a result of swelling tests, the influence of γ‐ray dose and relative content of crotonic acid on the swelling properties, the diffusional behavior of water, diffusion coefficients and network properties of the hydrogel systems were examined. Acrylamide/crotonic acid hydrogels containing these salts and agricultural drug were swollen in the range 2045–400% in water, while polyacrylamide hydrogels swelled in the range 660–700%. Water intake of hydrogels followed a nonFickian‐type diffusion. Copyright © 2000 John Wiley & Sons, Ltd.