| Download | - View accepted manuscript: Gas transport properties of tetramethyl polysulfones containing trimethylsilyl group side substituents (PDF, 5.8 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1021/bk-2004-0876.ch010 |
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| Author | Search for: Guiver, Michael D.1; Search for: Dai, Ying1; Search for: Robertson, Gilles P.1; Search for: Lee, Kwi Jong; Search for: Jho, Jae Young; Search for: Kang, Yong Soo |
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| Editor | Search for: Pinneau, Ingo; Search for: Freeman, Benny D. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Chemical Process and Environmental Technology
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| Format | Text, Article |
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| Conference | American Chemical Society Symposium on Advanced Materials for Membrane Separations, 222nd ACS National Meeting : Chicago, IL, August 26-30, 2001 |
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| Subject | polysulfone; trimethylsilyl (TMS); gas transport property; bromination methodology; lithiation methodology; ortho-sulfone TMS |
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| Abstract | Polysulfones with rigid chain structures and trimethylsilyl (TMS) substituents were prepared as potential membrane materials having enhanced gas transport properties. Tetramethyl polysulfones were modified by bromination and lithiation methodology to introduce high levels of TMS groups. Direct lithiation resulted exclusively in ortho-sulfone TMS. Bromination followed by excess lithiation resulted in a high degree of substitution (DS) of TMS on both the bisphenol and phenylsulfone rings. Polymers with a high DS of TMS had high CO₂ and O₂ permeabilities and good permselectivities from N₂. Permeabilities were correlated with d-spacing and specific volume. |
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| Publication date | 2004-04-20 |
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| Terms of use | - Material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission.
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 44385 |
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| NPARC number | 12328671 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | eead2243-d3f1-411e-a13c-4d475d9d9c1c |
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| Record created | 2009-09-10 |
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| Record modified | 2020-04-17 |
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