Ending aging in super glassy polymer membranes

Cher Hon Lau; Phuc Tien Nguyen; Matthew R. Hill; Aaron W. Thornton; Kristina Konstas; Cara M. Doherty; Roger J. Mulder; Laure Bourgeois; Amelia C.Y. Liu; David J. Sprouster; James P. Sullivan; Timothy J. Bastow; Anita J. Hill; Douglas L. Gin; Richard D. Noble

doi:10.1002/anie.201402234

Ending aging in super glassy polymer membranes

Cher Hon Lau, Phuc Tien Nguyen, Matthew R. Hill, Aaron W. Thornton, Kristina Konstas, Cara M. Doherty, Roger J. Mulder, Laure Bourgeois, Amelia C.Y. Liu, David J. Sprouster, James P. Sullivan, Timothy J. Bastow, Anita J. Hill, Douglas L. Gin, Richard D. Noble

Research output: Contribution to journal › Article › peer-review

276 Citations (Scopus)

Abstract

Aging in super glassy polymers such as poly(trimethylsilylpropyne) (PTMSP), poly(4-methyl-2-pentyne) (PMP), and polymers with intrinsic microporosity (PIM-1) reduces gas permeabilities and limits their application as gas-separation membranes. While super glassy polymers are initially very porous, and ultra-permeable, they quickly pack into a denser phase becoming less porous and permeable. This age-old problem has been solved by adding an ultraporous additive that maintains the low density, porous, initial stage of super glassy polymers through absorbing a portion of the polymer chains within its pores thereby holding the chains in their open position. This result is the first time that aging in super glassy polymers is inhibited whilst maintaining enhanced CO₂ permeability for one year and improving CO₂/N ₂ selectivity. This approach could allow super glassy polymers to be revisited for commercial application in gas separations. Forever young: Like stringed beads, polymer chains of a permeable membrane are intercalated within the pores of PAF-1 particles thus inhibiting polymer chain relaxation and stopping aging. PAF-1 incorporation also drastically enhanced gas permeabilities (see picture).

Original language	English
Pages (from-to)	5322-5326
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	53
Issue number	21
DOIs	https://doi.org/10.1002/anie.201402234
Publication status	Published - 19 May 2014

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Lau, C. H., Nguyen, P. T., Hill, M. R., Thornton, A. W., Konstas, K., Doherty, C. M., Mulder, R. J., Bourgeois, L., Liu, A. C. Y., Sprouster, D. J., Sullivan, J. P., Bastow, T. J., Hill, A. J., Gin, D. L., & Noble, R. D. (2014). Ending aging in super glassy polymer membranes. Angewandte Chemie - International Edition, 53(21), 5322-5326. https://doi.org/10.1002/anie.201402234

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abstract = "Aging in super glassy polymers such as poly(trimethylsilylpropyne) (PTMSP), poly(4-methyl-2-pentyne) (PMP), and polymers with intrinsic microporosity (PIM-1) reduces gas permeabilities and limits their application as gas-separation membranes. While super glassy polymers are initially very porous, and ultra-permeable, they quickly pack into a denser phase becoming less porous and permeable. This age-old problem has been solved by adding an ultraporous additive that maintains the low density, porous, initial stage of super glassy polymers through absorbing a portion of the polymer chains within its pores thereby holding the chains in their open position. This result is the first time that aging in super glassy polymers is inhibited whilst maintaining enhanced CO2 permeability for one year and improving CO2/N 2 selectivity. This approach could allow super glassy polymers to be revisited for commercial application in gas separations. Forever young: Like stringed beads, polymer chains of a permeable membrane are intercalated within the pores of PAF-1 particles thus inhibiting polymer chain relaxation and stopping aging. PAF-1 incorporation also drastically enhanced gas permeabilities (see picture).",

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AU - Doherty, Cara M.

AU - Mulder, Roger J.

AU - Bourgeois, Laure

AU - Liu, Amelia C.Y.

AU - Sprouster, David J.

AU - Sullivan, James P.

AU - Bastow, Timothy J.

AU - Hill, Anita J.

AU - Gin, Douglas L.

AU - Noble, Richard D.

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AB - Aging in super glassy polymers such as poly(trimethylsilylpropyne) (PTMSP), poly(4-methyl-2-pentyne) (PMP), and polymers with intrinsic microporosity (PIM-1) reduces gas permeabilities and limits their application as gas-separation membranes. While super glassy polymers are initially very porous, and ultra-permeable, they quickly pack into a denser phase becoming less porous and permeable. This age-old problem has been solved by adding an ultraporous additive that maintains the low density, porous, initial stage of super glassy polymers through absorbing a portion of the polymer chains within its pores thereby holding the chains in their open position. This result is the first time that aging in super glassy polymers is inhibited whilst maintaining enhanced CO2 permeability for one year and improving CO2/N 2 selectivity. This approach could allow super glassy polymers to be revisited for commercial application in gas separations. Forever young: Like stringed beads, polymer chains of a permeable membrane are intercalated within the pores of PAF-1 particles thus inhibiting polymer chain relaxation and stopping aging. PAF-1 incorporation also drastically enhanced gas permeabilities (see picture).

KW - aging

KW - gas separation

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KW - polymers

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Ending aging in super glassy polymer membranes

Abstract

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