Crosslinking of Branched PIM-1 and PIM-Py Membranes for Recovery of Toluene from Dimethyl Sulfoxide by Pervaporation
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Aloraini, Sulaiman
Mathias, Michael
Crone, Jessica
Bryce, Kurtis
Yu, Ming

Kirk, Richard A.
Ahmad, Mohd Zamidi
Asuquo, Edidiong D.

Rico-Martinez, Sandra

Volkov, Alexey V.
Foster, Andrew B.

Budd, Peter M.

KAUST Department
Chemistry Program, Physical Science Program, Environmental Science and Engineering Program, Biological and Environmental Science and Engineering Division (BESE), Advanced Membranes and Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi ArabiaBiological and Environmental Science and Engineering (BESE) Division
Environmental Science and Engineering Program
Advanced Membranes and Porous Materials Research Center
Physical Science and Engineering (PSE) Division
Chemical Science Program
Date
2023-01-17Permanent link to this record
http://hdl.handle.net/10754/689989
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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.Citation
Aloraini, S., Mathias, M., Crone, J., Bryce, K., Yu, M., Kirk, R. A., Ahmad, M. Z., Asuquo, E. D., Rico-Martínez, S., Volkov, A. V., Foster, A. B., & Budd, P. M. (2023). Crosslinking of Branched PIM-1 and PIM-Py Membranes for Recovery of Toluene from Dimethyl Sulfoxide by Pervaporation. ACS Applied Polymer Materials, 5(2), 1145–1158. https://doi.org/10.1021/acsapm.2c01600Sponsors
This work was supported by a British Council Institutional Links grant, No. 351983438 0100 “Development of a membrane method for the recovery of aromatic hydrocarbons from their mixtures with polar solvents” and by EPSRC Programme Grant ep/v047078/1 “SynHiSel”. S.A. is sponsored by Qassim University, Saudi Arabia. M.Y. is grateful for a Manchester–Melbourne dual award PhD studentship funded by the University of Melbourne. E.D.A. was supported by EPSRC grant EP/M001342/1. S.R.-M. received funding through the University of Valladolid Erasmus+ mobility for traineeship scheme and the Spanish Ministry of Sciences, Innovation and Universities (MCIU) FPU grant. The authors thank Anne Davies and Martin Jennings for their assistance in obtaining the elemental analysis. They also thank Carole Webb for her help with the GC analysis. The authors are grateful to Dr. Pavel Izák, Institute of Chemical Process Fundamentals, Prague, Czech Republic, for the design of the pervaporation cell.Publisher
American Chemical Society (ACS)Journal
ACS APPLIED POLYMER MATERIALSAdditional Links
https://pubs.acs.org/doi/10.1021/acsapm.2c01600ae974a485f413a2113503eed53cd6c53
10.1021/acsapm.2c01600
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