Transport phenomena of sulfonated dyes into cellulose membranes: Parallel diffusion of a sulfonated dye with a high affinity onto cellulose

  • Maekawa M
  • Kasai K
  • Nango M
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Transport phenomena of C.I. Direct Red 2 into water-swollen cellulose membranes have been studied at 55 °C. We reasoned that the dye has a high affinity on cellulose. The transport phenomena were analyzed on the basis of a parallel transport theory of surface and pore diffusion. The transport of the dye into a cellulose membrane was characterized and factors that affect the pore diffusivity of the parallel diffusion model were considered by comparing stimulated data.

Author-supplied keywords

  • Affinity
  • Cellulose membrane
  • Parallel diffusion
  • Sulfonated dyes
  • Transport phenomena

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  • M. Maekawa

  • K. Kasai

  • M. Nango

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