Crosslinking poly(1-trimethylsilyl-1-propyne) and its effect on solvent resistance and transport properties

Kelman, Scott D.; Matteucci, Scott; Bielawski, Christopher W.; Freeman, Benny D.

doi:10.1016/j.polymer.2007.08.063

Cited by 44 publications

(27 citation statements)

References 48 publications

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“…Shao et al . used the crosslinking strategy to improve the chemical and physical stabilities of polyacetylenes over time, whereas Kelman et al . reported that crosslinking PTMSP made it insoluble in well‐known solvents for an uncrosslinked polymer, but the gas permeabilities and FFV decreased over time.…”

Section: Introductionmentioning

confidence: 99%

Application of polyhedral oligomeric silsesquioxane to the stabilization and performance enhancement of poly(4‐methyl‐2‐pentyne) nanocomposite membranes for natural gas conditioning

Khosravi

Vatani

Mohammadi

2017

J of Applied Polymer Sci

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The application of octatrimethylsiloxy polyhedral oligomeric silsesquioxane (POSS) nanoparticles was investigated in the fabrication of novel reverse‐selective poly(4‐methyl‐2‐pentyne) (PMP) nanocomposite membranes for the separation of heavier hydrocarbons from methane. Generally, PMP and PMP–fumed silica (FS) nanocomposite membranes suffer severe physical aging with approximately 40% permeation flux reduction over 120 days. A straightforward strategy was introduced to suppress the physical aging of PMP and also to improve the thermal stability without compromising the selectivities and permeabilities through the incorporation of a functionalized POSS–FS binary filler system. Fourier transform infrared spectroscopy and scanning electron microscopy proved productive interactions between the fillers and polymer, with a fair compatibility between them. Thermogravimetric analysis confirmed that the thermal stability of the neat PMP was enhanced by the incorporation of the fillers into the nanocomposites. The addition of POSS and FS led to improved operational performance, such as in the permeability and selectivity, over the neat PMP. The permeation stabilities of the PMP–POSS and PMP–FS–POSS nanocomposite membranes were clearly improved over a long time (120 days). The permeation data indicated that the PMP–3 wt % POSS–20 wt % FS nanocomposite membrane is promising for C3H8/N2 and C3H8/CH4 separation. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45158.

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Section: Introductionmentioning

confidence: 99%

Application of polyhedral oligomeric silsesquioxane to the stabilization and performance enhancement of poly(4‐methyl‐2‐pentyne) nanocomposite membranes for natural gas conditioning

Khosravi

Vatani

Mohammadi

2017

J of Applied Polymer Sci

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“…However, PTMSP is soluble in liquid hydrocarbons, and therefore cannot be used in these industrial applications [27,28]. Hence, novel microporous glassy polymers with the exceptional mixed-gas permeation properties of PTMSP and significantly better solvent resistance are required as advanced membrane materials for separations involving condensable hydrocarbons.…”

Section: Introductionmentioning

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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“…The water transmission rate measured at 38 • C and 100% relative humidity dropped from 10 g mm m −2 d −1 before aging to 5.9 g mm m −2 d −1 after 100 h of irradiation. This large decrease in permeability can be explained by the cross-linking reactions, which lead to a densification of the three-dimensional network [34]. This result highlighted a positive effect of photo-aging on the protective function of the BD coating due to the chemical and morphological modifications.…”

Section: Permeabilitymentioning

confidence: 85%

Accelerated photo-aging of organic coatings used as protective layers for Blu-ray Discs

Collin

Bussière

Gardette

et al. 2015

Progress in Organic Coatings

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Crosslinking poly(1-trimethylsilyl-1-propyne) and its effect on solvent resistance and transport properties

Cited by 44 publications

References 48 publications

Application of polyhedral oligomeric silsesquioxane to the stabilization and performance enhancement of poly(4‐methyl‐2‐pentyne) nanocomposite membranes for natural gas conditioning

Application of polyhedral oligomeric silsesquioxane to the stabilization and performance enhancement of poly(4‐methyl‐2‐pentyne) nanocomposite membranes for natural gas conditioning

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

Accelerated photo-aging of organic coatings used as protective layers for Blu-ray Discs

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