Abstract
New conjugated polymeric nanochannels were prepared via photopolymerisation and core extraction of star-shaped supramolecular liquid crystals formed by simple hydrogen bonding between a phloroglucinol core and pyridine derivatives containing two different photoreactive groups. The polymerisable supramolecular liquid crystal exhibited a discotic columnar mesophase. Photopolymerisation of supramolecular liquid crystalline monomer provided cross-linked conjugated polymeric columns in which the diacetylene and acrylate moieties were selectively polymerised along the vertical and horizontal axes, respectively. Chemical treatment of the cross-linked conjugated columns with sodium hydroxide resulted in the removal of the phloroglucinol core to produce the cross-linked conjugated polymeric nanochannels with an estimated effective pore diameter of about 1 nm. The controlled methodology in the present study can be used to design and fabricate conjugated nanoporous organic materials with intriguing ordered structures.
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