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submitted on 16.09.2018 and posted on 18.09.2018by Amir Keshavarz, Sheida Riahinasab, Linda Hirst, Ben Stokes
design, synthesis, properties, and performance of a new class of promesogenic calamitic
side-tethering organic ligands used to direct quantum dot nanoparticle
self-assembly via nematic templating are described. This work was motivated by inadequate
modularity, step count, and yield associated with syntheses of existing
ligands. Attaching the new ligands to quantum dots and dispersing them in a
liquid crystal host affords hollow micron-sized capsules via nematic templating.
The capsules resist thermal decomposition up to 350 °C — significantly higher than any previously
reported microcapsules assembled from side-tethering calamitic
ligand-functionalized nanoparticle. Evaluation of the capsules by small-angle X-ray scattering shows that interparticle
spacing varies from 10–13 nm depending on the ligand used, and is correlated to
aminoalkyl chain length.