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Issue 1, 2021
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Functional nanostructures by NiCCo-PISA of helical poly(aryl isocyanide) copolymers

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Herein, we present a straightforward and versatile methodology to achieve functional polymeric nano-objects that contain helical cores. Nickel-catalysed coordination polymerisation-induced self-assembly (NiCCo-PISA) of helical poly(aryl isocyanide) amphiphilic diblock copolymers was conducted, affording micelles containing controllable quantities of activated ester groups (i.e. pentafluorophenyl esters) in the core that were subsequently modified using post-polymerisation modification (PPM) with amine nucleophiles. Three amines bearing different functionalities (alcohol, trifluoro and a maleimide dye) were successfully introduced into the nano-object cores as verified via NMR and FT-IR spectroscopy, while the retention of helicity within the resulting diblock copolymers was confirmed by circular dichroism (CD) spectroscopy. Changes in nanostructure morphology following modification were monitored by dynamic light-scattering (DLS), confirming the disassembly of the nano-objects when the core hydrophilicity was increased through the introduction of polar functionalities. These readily-synthesised and modified nanostructures containing helical cores are valuable scaffolds for use in applications such as circularly polarised luminescence, enantioselective chemistry or chiral separation.

Graphical abstract: Functional nanostructures by NiCCo-PISA of helical poly(aryl isocyanide) copolymers

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Supplementary files

Article information

01 Jun 2020
22 Jul 2020
First published
23 Jul 2020

This article is Open Access

Polym. Chem., 2021,12, 105-112
Article type

Functional nanostructures by NiCCo-PISA of helical poly(aryl isocyanide) copolymers

S. Jimaja, Y. Xie, J. C. Foster, D. Taton, A. P. Dove and R. K. O'Reilly, Polym. Chem., 2021, 12, 105 DOI: 10.1039/D0PY00791A

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