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    Organic solvent and thermal resistant polytriazole membranes with enhanced mechanical properties cast from solutions in non-toxic solvents

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    Name:
    High temperature OSN membranes-st-reviewers[1] (1).pdf
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    1.820Mb
    Format:
    PDF
    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Chisca, Stefan
    Marchesi, Tommaso
    Falca, Gheorghe
    Musteata, Valentina-Elena
    Huang, Tiefan
    Abou-Hamad, Edy
    Nunes, Suzana Pereira cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental 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/1/1057-01-01
    URF/1/3441-01-01
    Date
    2019-11-05
    Online Publication Date
    2019-11-05
    Print Publication Date
    2020-03
    Embargo End Date
    2021-11-05
    Submitted Date
    2019-07-04
    Permanent link to this record
    http://hdl.handle.net/10754/661534
    
    Metadata
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    Abstract
    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.2019.117634
    Sponsors
    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 BV
    Journal
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2019.117634
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0376738819320320
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.memsci.2019.117634
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Environmental Science and Engineering Program; Imaging and Characterization Core Lab

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