Pure- and mixed-gas permeation properties of polydimethylsiloxane for hydrocarbon/methane and hydrocarbon/hydrogen separation

Pinnau, Ingo; He, Zhenjie

doi:10.1016/j.memsci.2004.06.055

Cited by 179 publications

(109 citation statements)

References 28 publications

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“…The E p values are summarized in Table 3. Methane and nitrogen permeability of PIM-1 depend strongly on temperature and their E p values are essentially of the Mixed-gas permeation properties of microporous, glassy PIM-1, PTMSP, and rubbery PDMS [52]. Feed: 2 vol.% n-butane in methane; feed pressure: 150 psig; permeate pressure: 0 psig; temperature: 25 • C.…”

Section: Effect Of Temperature On Pure-gas Permeability Of Pim-1mentioning

confidence: 99%

Pure- and mixed-gas permeation properties of a microporous spirobisindane-based ladder polymer (PIM-1)

Thomas

Pinnau

et al. 2009

Journal of Membrane Science

261

122

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a b s t r a c t PIM-1, a glassy, spirobisindane-based ladder polymer is a novel intrinsically microporous membrane material. The pure-and mixed-gas permeation properties of PIM-1 are compared to those of highly permeable, microporous, linear chain, acetylene-based polymers, such as poly(1-trimethylsilyl-1-propyne) (PTMSP). PIM-1 exhibits very high permanent gas permeabilities coupled with moderate selectivities. For example, the oxygen permeability of PIM-1 at 25 • C is 1300 × 10 −10 cm 3 (STP) cm/cm 2 s cmHg combined with an oxygen/nitrogen selectivity of 3.8. Those values place PIM-1 above the Robeson trade-off curve for oxygen/nitrogen separation. Like microporous linear chain PTMSP, ladder-type PIM-1 is more permeable to large, condensable organic vapors, such as n-butane, than to small, permanent gases, such as methane. PIM-1 exhibits a mixed-gas n-butane/methane selectivity of up to 25, which is similar to that of PTMSP, the most permeable and selective polymer known for this separation. Because PIM-1 has significantly better solvent resistance than PTMSP, it could find applications as an advanced membrane material for the separation of organic vapor/permanent gas mixtures.

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Section: Effect Of Temperature On Pure-gas Permeability Of Pim-1mentioning

confidence: 99%

Pure- and mixed-gas permeation properties of a microporous spirobisindane-based ladder polymer (PIM-1)

Thomas

Pinnau

et al. 2009

Journal of Membrane Science

261

122

View full text Add to dashboard Cite

show abstract

“…They have larger temperature stability ranges than organic polymers. As a consequence, they were largely used in commercial applications, and are among the most studied polymers [5,6]. However, polysiloxanes remain poorly selective.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous polymer – Clay hybrid membranes for gas separation

Defontaine

Barichard

Letaı̈ef

et al. 2010

Journal of Colloid and Interface Science

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“…Elastomer is permeable to solvents, gases, moisture or even some small molecules 4,[28][29][30] . Permeability has been employed to fabricate non-contact pump for the manipulation of aqueous solutions within PDMS microfluidic devices 20 or supply oxygen for large-scale culture of hepatocytes 31 .…”

Section: Elastomer Property and Its Applicationsmentioning

confidence: 99%

“…For example, the 'smart' tricomponent amphiphilic membranes consisting of poly(ethylene glycol) (PEG), PDMS and polypentamethylcyclopentasiloxane (PD5) domains were synthesized for biological applications, including immunoisolation of cells 29,30 . The high oxygen permeability of PDMS makes it feasible for the application in microdevices in cell culture 34 .…”

Section: = −mentioning

confidence: 99%