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Synthesis and Gas Permeability of Novel Poly(diphenylacetylenes) Having Polyethylene Glycol Moieties

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Abstract

4-Trimethylsilyldiphenylacetylenes with methyl group or bromine atom (Me3SiC6H4C≡CC6H4R, R = m-CH3, p-CH3, m-Br, p-Br, 1a–d, respectively) were polymerized with TaCl5/ n-Bu4Sn to afford poly(diphenylacetylene) derivatives (2a–d). The polymers (2a–d) had high molecular weight over 5×105, and gave free-standing membranes by solution casting method. Chlorination of the obtained poly[1-(3-methylphenyl)-2-(4-trimethylsilyl)phenylacetylene] was carried out by using sulfuryl chloride, and then substitution of polyethylene glycol was performed to give poly(diphenylacetylene) possessing polyethylene glycol moieties. Its carbon dioxide permeability (PCO 2) and permselectivity (PCO 2/PN 2) were 2,970 barrers and 9.0, respectively.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Graduate School of Engineering, University of Fukui, Bunkyo, 910-8507, Fukui, Japan

    Toshikazu Sakaguchi, Koji Kameoka & Tamotsu Hashimoto

Authors
  1. Toshikazu Sakaguchi
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  2. Koji Kameoka
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  3. Tamotsu Hashimoto
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Sakaguchi, T., Kameoka, K. & Hashimoto, T. Synthesis and Gas Permeability of Novel Poly(diphenylacetylenes) Having Polyethylene Glycol Moieties . Polym. Bull. 60, 441–448 (2008). https://doi.org/10.1007/s00289-007-0876-4

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  • DOI: https://doi.org/10.1007/s00289-007-0876-4

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