Abstract
A polymeric membrane material for efficient water desalination based on a cross-linked type I bicontinuous cubic (QI) lyotropic liquid crystal (LLC) assembly is described. This ordered, nanoporous, polymer material is formed by the self-assembly of a cross-linkable gemini amphiphile in water and contains interpenetrating organic networks separated from one another by a continuous, ultrathin water layer surface (ca. 0.75 nm gap spacing) with overall cubic symmetry. Supported membranes of this material are produced by hot-pressing the initial LLC monomer gel at high pressure through a commercial microporous hydrophilic membrane support at 70 °C and then radically photocross-linking the infused QI monomer phase. In stirred dead-end water filtration tests, the resulting 40-μm thick, optically transparent, supported LLC membranes exhibit 95−99.9% rejection of dissolved salt ions, neutral molecules and macromolecules, and molecular ions in the 0.64−1.2 nm size range in a single pass. This rejection performance ...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
