| Téléchargement | - Voir le manuscrit accepté : Gas transport properties of tetramethyl polysulfones containing trimethylsilyl group side substituents (PDF, 5.8 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1021/bk-2004-0876.ch010 |
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| Auteur | Rechercher : Guiver, Michael D.1; Rechercher : Dai, Ying1; Rechercher : Robertson, Gilles P.1; Rechercher : Lee, Kwi Jong; Rechercher : Jho, Jae Young; Rechercher : Kang, Yong Soo |
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| Éditeur | Rechercher : Pinneau, Ingo; Rechercher : Freeman, Benny D. |
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| Affiliation | - Conseil national de recherches du Canada. Institut de technologie des procédés chimiques et de l'environnement du CNRC
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| Format | Texte, Article |
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| Conférence | American Chemical Society Symposium on Advanced Materials for Membrane Separations, 222nd ACS National Meeting : Chicago, IL, August 26-30, 2001 |
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| Sujet | polysulfone; trimethylsilyl (TMS); gas transport property; bromination methodology; lithiation methodology; ortho-sulfone TMS |
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| Résumé | 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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| Date de publication | 2004-04-20 |
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| Conditions d’utilisation | - 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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| Condition d’accès | |
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| Dans | |
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| Série | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRCC 44385 |
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| Numéro NPARC | 12328671 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | eead2243-d3f1-411e-a13c-4d475d9d9c1c |
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| Enregistrement créé | 2009-09-10 |
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| Enregistrement modifié | 2020-04-17 |
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