Study by response surface methodology of the swelling kinetic of weakly basic polyacrylamide gels in water

  1. González-Sáiz, J.M. 1
  2. Fernández-Torroba, M.A. 1
  3. Pizarro, C. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Revista:
European Polymer Journal

ISSN: 0014-3057

Año de publicación: 1999

Volumen: 35

Número: 3

Páginas: 509-516

Tipo: Artículo

DOI: 10.1016/S0014-3057(98)00153-0 SCOPUS: 2-s2.0-0000810177 WoS: WOS:000077876300017 GOOGLE SCHOLAR

Otras publicaciones en: European Polymer Journal

Repositorio institucional: lock_openAcceso abierto Editor

Resumen

The aqueous swelling kinetic and cooperative diffusion coefficient were studied for various crosslinked polyacrylamide gels, copolymerized with N,N-dimethylaminoethyl methacrylate (DMA), containing different crosslinker ratios, monomer concentrations and percentages of ionizable monomer. The cooperative diffusion coefficient was determined using a theory developed by Li and Tanaka for the swelling kinetics of disk gels. Using experimental design, response surfaces were calculated for the cooperative diffusion coefficient as a function of gel composition. The results obtained show that the degree of crosslinking and the percentage of ionizable monomer are the variables which most strongly affect the cooperative diffusion coefficient. © 1998 Elsevier Science Ltd. All rights reserved.