Plasticization of gas separation membranes

Matthias Wessling, S. Schoeman, Anthonie van den Boomgaard, C.A. Smolders, C.A. Smolders

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Abstract

For the investigation of the plasticizing effect of carbon dioxide on polymers used for gas separation membranes new experimental methods have been developed that measure the sorption kinetics as well as the dilation kinetics. Comparing dilation and sorption kinetics at low and elevated pressures gives information about different types of swelling behaviour depending on the pressure level. Volume relaxation in the form of a slow volume increase in time can be observed above a certain pressure, called plasticization pressure. An interpretation of these experimental facts as a process of slow loosening of densely packed entanglements is suggested. By using sorption kinetics experiments at various temperatures the plasticizing effect of C02 is apparent by a decreasing activation energy for diffusion with increasing penetrant concentration
Original languageUndefined
Pages (from-to)222-228
Number of pages7
JournalGas separation and purification
Volume0
Issue number5
DOIs
Publication statusPublished - 1991

Keywords

  • METIS-105599
  • IR-10311

Cite this

Wessling, M., Schoeman, S., van den Boomgaard, A., Smolders, C. A., & Smolders, C. A. (1991). Plasticization of gas separation membranes. Gas separation and purification, 0(5), 222-228. https://doi.org/10.1016/0950-4214(91)80028-4
Wessling, Matthias ; Schoeman, S. ; van den Boomgaard, Anthonie ; Smolders, C.A. ; Smolders, C.A. / Plasticization of gas separation membranes. In: Gas separation and purification. 1991 ; Vol. 0, No. 5. pp. 222-228.
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Wessling, M, Schoeman, S, van den Boomgaard, A, Smolders, CA & Smolders, CA 1991, 'Plasticization of gas separation membranes' Gas separation and purification, vol. 0, no. 5, pp. 222-228. https://doi.org/10.1016/0950-4214(91)80028-4

Plasticization of gas separation membranes. / Wessling, Matthias; Schoeman, S.; van den Boomgaard, Anthonie; Smolders, C.A.; Smolders, C.A.

In: Gas separation and purification, Vol. 0, No. 5, 1991, p. 222-228.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Plasticization of gas separation membranes

AU - Wessling, Matthias

AU - Schoeman, S.

AU - van den Boomgaard, Anthonie

AU - Smolders, C.A.

AU - Smolders, C.A.

PY - 1991

Y1 - 1991

N2 - For the investigation of the plasticizing effect of carbon dioxide on polymers used for gas separation membranes new experimental methods have been developed that measure the sorption kinetics as well as the dilation kinetics. Comparing dilation and sorption kinetics at low and elevated pressures gives information about different types of swelling behaviour depending on the pressure level. Volume relaxation in the form of a slow volume increase in time can be observed above a certain pressure, called plasticization pressure. An interpretation of these experimental facts as a process of slow loosening of densely packed entanglements is suggested. By using sorption kinetics experiments at various temperatures the plasticizing effect of C02 is apparent by a decreasing activation energy for diffusion with increasing penetrant concentration

AB - For the investigation of the plasticizing effect of carbon dioxide on polymers used for gas separation membranes new experimental methods have been developed that measure the sorption kinetics as well as the dilation kinetics. Comparing dilation and sorption kinetics at low and elevated pressures gives information about different types of swelling behaviour depending on the pressure level. Volume relaxation in the form of a slow volume increase in time can be observed above a certain pressure, called plasticization pressure. An interpretation of these experimental facts as a process of slow loosening of densely packed entanglements is suggested. By using sorption kinetics experiments at various temperatures the plasticizing effect of C02 is apparent by a decreasing activation energy for diffusion with increasing penetrant concentration

KW - METIS-105599

KW - IR-10311

U2 - 10.1016/0950-4214(91)80028-4

DO - 10.1016/0950-4214(91)80028-4

M3 - Article

VL - 0

SP - 222

EP - 228

JO - Gas separation and purification

JF - Gas separation and purification

SN - 0950-4214

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