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Title: Halogen-bond-driven supramolecular assemblies of quaternary-ammonium-iodide-containing polymers in three phases
Authors: Le, Hong Tho
Goto, Atsushi
Keywords: Science::Chemistry::Organic chemistry::Polymers
Issue Date: 2021
Source: Le, H. T. & Goto, A. (2021). Halogen-bond-driven supramolecular assemblies of quaternary-ammonium-iodide-containing polymers in three phases. Cell Reports Physical Science, 2(6), 100469-.
Project: NRF-NRFI05-2019-0001
Journal: Cell Reports Physical Science
Abstract: Halogen bonding (XB) opens avenues to supramolecular assemblies. Here, we report XB-driven supramolecular assemblies of quaternary ammonium iodide (QAI)-containing polymers in three (solution, surface, and solid) phases. In the solution, QAI-containing block copolymers form unique self-assembly structures such as micrometer-sized giant vesicles (up to 5-μm diameter) and a 1-dimensional (1D) structure with multiple inter-vesicular linkages via XB. Exploiting the temperature dependence of XB strength, external molecules are successfully loaded and unloaded. On the surface, reversible XB crosslinking and decrosslinking of QAI-containing polymer brushes are achieved. The wettability of the polymer brush is finely tuned by the XB crosslinking density. In solid phase, QAI-containing monomers are co-crystalized (assembled) via XB. A polymer sheet is obtained via the solid-phase polymerization of the monomer co-crystal; the sheet enables capture and release of halogen-containing (XB-coordinating) guest molecules and thereby serves as an innovative host material.
ISSN: 2666-3864
DOI: 10.1016/j.xcrp.2021.100469
Schools: School of Physical and Mathematical Sciences 
Departments: Division of Chemistry and Biological Chemistry
Rights: © 2021 The Author(s). This is an open access article under the CC BY-NC-ND license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
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