Dual-phase microporous polymer nanofilms by interfacial polymerization for ultrafast molecular separation
Name
sciadv.adp6666.pdf
Description
Published version
Size
5.8 MB
Format
Adobe PDF
Checksum (MD5)
11ef1b125fcd87d17855e52b0d6668d6
Author(s)
Lee, Tae Hoon
Balcik, Marcel
Wu, Wan-Ni
Pinnau, Ingo
Smith, Zachary P
Date Issued
August 16, 2024
Journal
Science Advances
Publisher
American Association for the Advancement of Science
Citation
Tae Hoon Lee et al. ,Dual-phase microporous polymer nanofilms by interfacial polymerization for ultrafast molecular separation.Sci. Adv.10,eadp6666(2024).
Version
Final published version
Abstract
Fine-tuning microporosity in polymers with a scalable method has great potential for energy-efficient molecular separations. Here, we report a dual-phase molecular engineering approach to prepare microporous polymer nanofilms through interfacial polymerization. By integrating two micropore-generating units such as a water-soluble Tröger’s base diamine (TBD) and a contorted spirobifluorene (SBF) motif, the resultant TBD-SBF polyamide shows an unprecedentedly high surface area. An ultrathin TBD-SBF membrane (~20 nm) exhibits up to 220 times improved solvent permeance with a moderate molecular weight cutoff (~640 g mol−1) compared to the control membrane prepared by conventional chemistry, which outperforms currently reported polymeric membranes. We also highlight the great potential of the SBF-based microporous polyamides for hydrocarbon separations by exploring the isomeric effects of aqueous phase monomers to manipulate microporosity.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution-Noncommercial
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1126/sciadv.adp6666
