Relaxation phenomena in dense glassy polymer membranes

R.H.B. Bouma, Richard Hendrik Bouke Bouma

Research output: ThesisPhD Thesis - Research UT, graduation UT

17 Downloads (Pure)

Abstract

Dense polymeric films can be used as permeation-selective barriers which change the composition of a fluid by differences in solubility and/or diffusivity of fluid components in the membrane material. In general glassy polymers show rather high selectivities, but usually in combination with low fluxes. Since membrane fluxes are inversely proportional to the selective barrier thickness, membranes are made as thin as possible. For pervaporation membranes the approach to prepare thin membranes failed with respect to the selectivity of the membrane. In literature membrane selectivities were reported to decrease with decreasing membrane thickness. Furthermore the membrane preparation procedure by drying a polymer solution cast on a suitable support influences the selective permeation.
Original languageUndefined
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Strathmann, H., Supervisor
  • Smolders, C.A., Supervisor
  • Smolders, C.A., Supervisor
Award date27 Jan 1995
Place of Publicationenschede
Publisher
Print ISBNs90-9007846-0
Publication statusPublished - 27 Jan 1995

Keywords

  • METIS-105153
  • IR-9345

Cite this

Bouma, R. H. B., & Bouma, R. H. B. (1995). Relaxation phenomena in dense glassy polymer membranes. enschede: Universiteit Twente.
Bouma, R.H.B. ; Bouma, Richard Hendrik Bouke. / Relaxation phenomena in dense glassy polymer membranes. enschede : Universiteit Twente, 1995. 157 p.
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Bouma, RHB & Bouma, RHB 1995, 'Relaxation phenomena in dense glassy polymer membranes', University of Twente, enschede.

Relaxation phenomena in dense glassy polymer membranes. / Bouma, R.H.B.; Bouma, Richard Hendrik Bouke.

enschede : Universiteit Twente, 1995. 157 p.

Research output: ThesisPhD Thesis - Research UT, graduation UT

TY - THES

T1 - Relaxation phenomena in dense glassy polymer membranes

AU - Bouma, R.H.B.

AU - Bouma, Richard Hendrik Bouke

PY - 1995/1/27

Y1 - 1995/1/27

N2 - Dense polymeric films can be used as permeation-selective barriers which change the composition of a fluid by differences in solubility and/or diffusivity of fluid components in the membrane material. In general glassy polymers show rather high selectivities, but usually in combination with low fluxes. Since membrane fluxes are inversely proportional to the selective barrier thickness, membranes are made as thin as possible. For pervaporation membranes the approach to prepare thin membranes failed with respect to the selectivity of the membrane. In literature membrane selectivities were reported to decrease with decreasing membrane thickness. Furthermore the membrane preparation procedure by drying a polymer solution cast on a suitable support influences the selective permeation.

AB - Dense polymeric films can be used as permeation-selective barriers which change the composition of a fluid by differences in solubility and/or diffusivity of fluid components in the membrane material. In general glassy polymers show rather high selectivities, but usually in combination with low fluxes. Since membrane fluxes are inversely proportional to the selective barrier thickness, membranes are made as thin as possible. For pervaporation membranes the approach to prepare thin membranes failed with respect to the selectivity of the membrane. In literature membrane selectivities were reported to decrease with decreasing membrane thickness. Furthermore the membrane preparation procedure by drying a polymer solution cast on a suitable support influences the selective permeation.

KW - METIS-105153

KW - IR-9345

M3 - PhD Thesis - Research UT, graduation UT

SN - 90-9007846-0

PB - Universiteit Twente

CY - enschede

ER -

Bouma RHB, Bouma RHB. Relaxation phenomena in dense glassy polymer membranes. enschede: Universiteit Twente, 1995. 157 p.