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Influence of some crosslinkers on the swelling of acrylamide-crotonic acid hydrogels

Date

1997

Author

Erdener Karadağ
Olgun Güven
Dursun Saraydın

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Abstract

Acrylamide-crotonic acid hydrogels in the form of rods are prepared by $\gamma$-irradiation of quaternary mixtures of acrylamide-crotonic acid-crosslinker-water with 2.6 and 5.2 kGy $\gamma$-rays. The influence of the applied dose, the relative content of crotonic acid and crosslinkers such as ethylene glycol dimethacrylate, 1.4 butanediol dimethacrylate and N,N' methylenebisacrylamide on the swelling properties of the gel, the diffusional behaviour of water, the diffusion coefficient, and the network parameters of hydrogel systems are examined. Acrylamide-crotonic acid hydrogels containing various crosslinkers had a maximum swelling in the range 240-850 %. Water diffusion to hydrogels was non-Fickian. The diffusion coefficients varied between 4.6 \times $10^{-7}$ and 9.1 \times $10^{-7}$ $cm^2 s^{-1}$.
 
Acrylamide-crotonic acid hydrogels in the form of rods are prepared by $\gamma$-irradiation of quaternary mixtures of acrylamide-crotonic acid-crosslinker-water with 2.6 and 5.2 kGy $\gamma$-rays. The influence of the applied dose, the relative content of crotonic acid and crosslinkers such as ethylene glycol dimethacrylate, 1.4 butanediol dimethacrylate and N,N' methylenebisacrylamide on the swelling properties of the gel, the diffusional behaviour of water, the diffusion coefficient, and the network parameters of hydrogel systems are examined. Acrylamide-crotonic acid hydrogels containing various crosslinkers had a maximum swelling in the range 240-850 %. Water diffusion to hydrogels was non-Fickian. The diffusion coefficients varied between 4.6 \times $10^{-7}$ and 9.1 \times $10^{-7}$ $cm^2 s^{-1}$.
 

Source

Turkish Journal of Chemistry

Volume

21

Issue

3

URI

http://www.trdizin.gov.tr/publication/paper/detail/TlRFMU1qTXo=
https://hdl.handle.net/20.500.12418/885

Collections

  • Makale Koleksiyonu [3405]
  • Öksüz Yayınlar Koleksiyonu - TRDizin [3399]



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