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Crosslinking of Branched PIM-1 and PIM-Py Membranes for Recovery of Toluene from Dimethyl Sulfoxide by Pervaporation.
Aloraini, Sulaiman; Mathias, Michael; Crone, Jessica; Bryce, Kurtis; Yu, Ming; Kirk, Richard A; Ahmad, Mohd Zamidi; Asuquo, Edidiong D; Rico-Martínez, Sandra; Volkov, Alexey V; Foster, Andrew B; Budd, Peter M.
Afiliação
  • Aloraini S; Department of Chemistry, University of Manchester, Oxford Road, ManchesterM13 9PL, United Kingdom.
  • Mathias M; Department of Chemistry, College of Science and Arts, Qassim University, Ar Rass52571, Saudi Arabia.
  • Crone J; Department of Chemistry, University of Manchester, Oxford Road, ManchesterM13 9PL, United Kingdom.
  • Bryce K; Department of Chemistry, University of Manchester, Oxford Road, ManchesterM13 9PL, United Kingdom.
  • Yu M; Department of Chemistry, University of Manchester, Oxford Road, ManchesterM13 9PL, United Kingdom.
  • Kirk RA; Department of Chemistry, University of Manchester, Oxford Road, ManchesterM13 9PL, United Kingdom.
  • Ahmad MZ; Department of Chemical Engineering, The University of Melbourne, Melbourne, VIC3010, Australia.
  • Asuquo ED; Department of Chemistry, University of Manchester, Oxford Road, ManchesterM13 9PL, United Kingdom.
  • Rico-Martínez S; Department of Chemistry, University of Manchester, Oxford Road, ManchesterM13 9PL, United Kingdom.
  • Volkov AV; Department of Chemistry, University of Manchester, Oxford Road, ManchesterM13 9PL, United Kingdom.
  • Foster AB; IU CINQUIMA, Universidad de Valladolid, Paseo Belén 5, E-47011Valladolid, Spain.
  • Budd PM; A. V. Topchiev Institute of Petrochemical Synthesis, 29 Leninsky Avenue, Moscow119991, Russian Federation.
ACS Appl Polym Mater ; 5(2): 1145-1158, 2023 Feb 10.
Article em En | MEDLINE | ID: mdl-36817336
Branched forms of the archetypal polymer of intrinsic microporosity PIM-1 and the pyridinecarbonitrile-containing PIM-Py may be crosslinked under ambient conditions by palladium(II) acetate. Branched PIM-1 can arise in polymerizations of 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-1,1'-spirobisindane with tetrafluoroterephthalonitrile conducted at a high set temperature (160 °C) under conditions, such as high dilution, that lead to a lower-temperature profile over the course of the reaction. Membranes of PIM-1 and PIM-Py crosslinked with palladium acetate are sufficiently stable in organic solvents for use in the recovery of toluene from its mixture with dimethyl sulfoxide (DMSO) by pervaporation at 65 °C. With both PIM-1 and PIM-Py membranes, pervaporation gives high toluene/DMSO separation factors (around 10 with a 77 vol % toluene feed). Detailed analysis shows that the membranes themselves are slightly selective for DMSO and it is the high driving force for toluene evaporation that drives the separation.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article