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Creation of Discrete 1D Microstructures: Directional Dissociation from the Ends of a Metastable Supramolecular Polymer

Creation of Discrete 1D Microstructures: Directional Dissociation from the Ends of a Metastable... One major concern in supramolecular chemistry is how to place different intermolecular interactions in a desired position, especially at the terminal ends, of 1D structures. A solution to the problem is co‐assembly in microflow. We demonstrate that kinetic co‐assembly of two kinds of amphiphilic oligo(p‐phenylenevinylene) molecules with different amide groups result in metastable nanofibers where stronger hydrogen‐bonding interactions are regularly inserted as stabilizing wedges. It is found that decomposition of the nanofibers from the ends is suppressed at the wedges, leading to the creation of discrete 1D structures with capped ends (length dispersity Lw/Ln≤1.2), which act as a micrometer‐sized building blocks that can be used for further hierarchical assembly. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ChemPlusChem Wiley

Creation of Discrete 1D Microstructures: Directional Dissociation from the Ends of a Metastable Supramolecular Polymer

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References (16)

Publisher
Wiley
Copyright
© 2020 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
eISSN
2192-6506
DOI
10.1002/cplu.201900463
Publisher site
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Abstract

One major concern in supramolecular chemistry is how to place different intermolecular interactions in a desired position, especially at the terminal ends, of 1D structures. A solution to the problem is co‐assembly in microflow. We demonstrate that kinetic co‐assembly of two kinds of amphiphilic oligo(p‐phenylenevinylene) molecules with different amide groups result in metastable nanofibers where stronger hydrogen‐bonding interactions are regularly inserted as stabilizing wedges. It is found that decomposition of the nanofibers from the ends is suppressed at the wedges, leading to the creation of discrete 1D structures with capped ends (length dispersity Lw/Ln≤1.2), which act as a micrometer‐sized building blocks that can be used for further hierarchical assembly.

Journal

ChemPlusChem – Wiley

Published: Jan 1, 2020

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