Organic solvent and thermal resistant polytriazole membranes with enhanced mechanical properties cast from solutions in non-toxic solvents
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ArticleAuthors
Chisca, StefanMarchesi, Tommaso
Falca, Gheorghe
Musteata, Valentina-Elena
Huang, Tiefan
Abou-Hamad, Edy
Nunes, Suzana Pereira

KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionEnvironmental Science and Engineering Program
Imaging and Characterization Core Lab
King Abdullah University of Science and Technology (KAUST), Biological and Environmental Science and Engineering Division (BESE), Advanced Membrane and Porous Materials (AMPM), Thuwal, 23955-6900, Saudi Arabia
NMR
Nanostructured Polymeric Membrane Lab
KAUST Grant Number
BAS/1/1057-01-01URF/1/3441-01-01
Date
2019-11-05Online Publication Date
2019-11-05Print Publication Date
2020-03Embargo End Date
2021-11-05Submitted Date
2019-07-04Permanent link to this record
http://hdl.handle.net/10754/661534
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Show full item recordAbstract
We report the synthesis of organic solvent resistant polytriazole membranes using a sustainable process. In the first step, the polymer was dissolved in an ionic liquid for the membrane casting and immersion in water, followed by exposure to two non-toxic diepoxy crosslinkers with different lengths. We investigated the mechanical properties by measuring the creep recovery, and we correlated these data with the physical aging and compaction during filtration. Additionally, by using dynamic mechanical analysis, we studied the polymer relaxations at high temperatures associated with the local mobility of the crosslinker segments and the polytriazole chains, discussing their effect on the membrane performance. The performance in strong polar solvents, such as N, N′-dimethylformamide, was evaluated from 25 °C to 105 °C, with permeance values in the range of 3.7–10.6 L m−2 h−1 bar−1, and molecular weight cut-off around 1000 g mol−1. This confirms that the membranes meet the requirements for organic solvent applications.Citation
Chisca, S., Marchesi, T., Falca, G., Musteata, V.-E., Huang, T., Abou-Hamad, E., & Nunes, S. P. (2020). Organic solvent and thermal resistant polytriazole membranes with enhanced mechanical properties cast from solutions in non-toxic solvents. Journal of Membrane Science, 597, 117634. doi:10.1016/j.memsci.2019.117634Sponsors
The authors thank King Abdullah University of Science and Technology (KAUST) for the financial support, particularly for the grant URF/1/3441-01-01 and the base line BAS/1/1057-01-01.Publisher
Elsevier BVJournal
Journal of Membrane ScienceAdditional Links
https://linkinghub.elsevier.com/retrieve/pii/S0376738819320320ae974a485f413a2113503eed53cd6c53
10.1016/j.memsci.2019.117634