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Although the preparation of single‐handed helical inorganic and hybrid organic‐inorganic nanotubes is well developed, approaches to the formation of single‐handed organopolymeric nanotubes are limited. Here, left‐handed helical m‐phenylenediamine‐formaldehyde resin and 3‐aminophenol‐formaldehyde resin nanotubes were prepared by using N‐palmitoyl glucosamine that can self‐assemble into left‐handed...
Polybissilsesquioxanes with single‐handed helical morphologies attracted much attention during the last decade, which could be applied as asymmetric catalysts and chiral stationary phases. Herein, a pair of chiral biphenylene‐bridged bissilsesquioxanes were synthesized. They self‐assembled into helical bundles in ethanol, behavior that was confirmed in field emission scanning electron microscopy images...
Single‐handed twisted 4,4′‐biphenylene‐bridged polybissilsesquioxane tubular nanoribbons and single‐layered nanoribbons were prepared by tuning the water/ethanol volume ratio in the reaction mixture at pH = 11.6 through a supramolecular templating approach. The single‐layered nanoribbons were formed by shrinking tubular nanoribbons after the removal of the templates. In addition, solvent‐induced handedness...
Single‐handed twisted titania tubular nanoribbons were prepared through sol‐gel transcription using a pair of enantiomers. Handedness was controlled by that of the template. The obtained samples were characterized using field‐emission electron microscopy, transmission electron microscopy, diffuse reflectance circular dichroism (DRCD), and X‐ray diffraction. The DRCD spectra indicated that the titania...
The morphology, pore architecture and crystallinity of the mesoporous 1,4‐phenylene‐silicas were controlled using the mixtures of cetyltrimethylammonium bromide (CTAB) and sodium dodecylsulfate (SDS). When the SDS/CTAB molar ratio increased from 0 to 1.0, the morphology of the mesoporous 1,4‐phenylene‐silicas changed in a sequence of sphere, hexagonal short rod, worm‐like, bent flake and flower‐like...
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