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Updated: Jul 9, 2025
Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Preparation and temperature-controlled morphology of helical microrods composed of supramolecular α-cyclodextrin
Toshiyuki Kida1,2, Ayumi Teragaki1, Haruya Ishida1
1Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita Japan kida@chem.eng.osaka-u.ac.jp.
Abstract:
Significant efforts have been devoted so far to artificially fabricate supramolecular helical nano- and microstructures through the regulated assembly of biological and synthetic building blocks. However, the preparation of supramolecular helical structures with a regulated morphology remains challenging. Here, helical microrods composed of supramolecular α-cyclodextrin (α-CD) assemblies were fabricated by allowing an α-CD/1,1,1,3,3,3-hexafluoro-2-propanol (HFIP)/2-pentanol mixture to stand at 30-60 °C under high humidity conditions. The morphology could be controlled by temperature to produce helical microrods with a regulated pitch and length. These helical rods can be applied as optical devices, chiral separation devices and asymmetric catalysts.
