Proton conductive cationic nanoporous polymers based on smectic liquid crystal hydrogen-bonded heterodimers

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Abstract

The fabrication of a cationic nanoporous smectic liquid crystal network (LCN) based on hydrogen bonded heterodimers is presented. The method relies on a supramolecular complex made from a pyridyl bearing reactive mesogen hydrogen bonded to a non-reactive benzoic acid template. Upon addition of a cross-linker, a smectic liquid crystalline phase is obtained that can be fixed by photopolymerization. It was found that the lamellar structure was maintained after template removal when 25 wt% or more cross-linker was used, yielding a nanoporous LCN. After H3PO4 immobilization in the pores of the LCN, a cationic 2D nanoporous polymer is obtained showing high and anisotropic anhydrous proton conductivity.

Original languageEnglish
Pages (from-to)5018-5024
Number of pages7
JournalJournal of Materials Chemistry C
Volume6
Issue number18
DOIs
Publication statusPublished - 14 May 2018

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