Poly (ether imide sulfone) membranes from solutions in ionic liquids
Type
ArticleAuthors
Kim, Dooli
Nunes, Suzana Pereira

KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionEnvironmental Science and Engineering Program
Date
2017-12-06Online Publication Date
2017-12-06Print Publication Date
2017-12-20Permanent link to this record
http://hdl.handle.net/10754/626282
Metadata
Show full item recordAbstract
A membrane manufacture method based on non-volatile solvents and a high performance polymer, poly (ether imide sulfone) (EXTEM™), is proposed, as greener alternative to currently industrial process. We dissolved EXTEM™ in pure ionic liquids: 1-ethyl-3-methylimidalzolium thiocyanate ([EMIM]SCN), 1-butyl-3-methylimidalzolium thiocyanate ([BMIM]SCN), and 1-ethyl-3-methylimidalzolium acetate ([EMIM]OAc). The following polymer solution parameters were evaluated to optimize the manufacture: Gibbs free energy of mixing (G), intrinsic viscosity ([]) and hydrodynamic diameter. Membranes with sponge-like structure and narrow pore size distribution were obtained from solutions in [EMIM]SCN. They were tested for separation of proteins and deoxyribonucleic acids (DNA). Due to the polymer stability, we foresee that applications in more demanding chemical separations would be possible. [EMIM]SCN was 96 % purified and recovered after the membrane fabrication, contributing to the sustainability of the whole manufacturing process.Citation
Kim D, Nunes SP (2017) Poly (ether imide sulfone) membranes from solutions in ionic liquids. Industrial & Engineering Chemistry Research. Available: http://dx.doi.org/10.1021/acs.iecr.7b03581.Sponsors
This work was sponsored by King Abdullah University of Science and Technology (KAUST).Publisher
American Chemical Society (ACS)Additional Links
http://pubs.acs.org/doi/10.1021/acs.iecr.7b03581ae974a485f413a2113503eed53cd6c53
10.1021/acs.iecr.7b03581