Solvent and thermal resistant ultrafiltration membranes from alkyne-functionalized high-performance polymers
Type
ArticleKAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionEnvironmental Science and Engineering Program
Nanostructured Polymeric Membrane Lab
Date
2018-07-24Online Publication Date
2018-07-24Print Publication Date
2018-10Permanent link to this record
http://hdl.handle.net/10754/630765
Metadata
Show full item recordAbstract
Polymeric porous membranes with excellent thermal (Td higher than 500 °C) and solvent resistance were prepared. The membranes were based on three high-performance polymers (polyoxindolebiphenylene, polytriazole and polybenzimidazole), functionalized with alkyne side groups. The functionalization enabled the polymer crosslinking by a fast and simple wet-state thermal process in hot glycerol. The effect of crosslinking time and temperature was evaluated. The obtained membranes were characterized by spectroscopy and thermal analysis. The membrane morphology was investigated by electron microscopy. The liquid separation performance of the crosslinked membranes was evaluated in several organic solvents. The stability in filtration experiments was demonstrated in dimethylformamide at temperatures up to 140 °C. The solvent resistance in various solvents was confirmed in long-term tests (up to 21 days) at room temperature.Citation
Pulido B, Chisca S, Nunes SP (2018) Solvent and thermal resistant ultrafiltration membranes from alkyne-functionalized high-performance polymers. Journal of Membrane Science 564: 361–371. Available: http://dx.doi.org/10.1016/j.memsci.2018.07.025.Sponsors
This work was sponsored by King Abdullah University of Science and Technology (KAUST), CRG6 URF/1/3441-01-01.Publisher
Elsevier BVJournal
Journal of Membrane Scienceae974a485f413a2113503eed53cd6c53
10.1016/j.memsci.2018.07.025