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

Mulder, Dirk-Jan; Liang, Ting; Xu, Yifei; Schiphorst, Jeroen ter; Scheres, Luc M. W.; Oosterlaken, Bernette M.; Borneman, Zandrie; Nijmeijer, Kitty; Schenning, Albertus P. H. J.

By 12 March 2019No Comments

Journal of Materials Chemistry C, 2018, vol 6, 18, pp. 5018-5024



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.

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