James, A.M., Derry, M., Train, J. et al. (1 more author) (2019) Dispersible microporous di-block co-polymer Nanoparticles via polymerisation-induced self-assembly. Polymer Chemistry, 10 (28). pp. 3879-3886. ISSN 1759-9954
Abstract
Microporous materials are predominantly formed as insoluble powders which means that they can be difficult to process. Here we report a new class of solvent-dispersible porous polymers synthesised by reversible addition-fragmentation chain transfer mediated polymerisation-induced self-assembly (RAFT-mediated PISA), formed from a PEG macro-CTA polymerised with divinylbenzene and fumaronitrile. The particles have a dual morphology consisting of smaller spheres of 24-29 nm aggregated into larger particles of 204 - 262 nm. Gas sorption analysis showed the particles to have BET surface areas of 274 to 409 m2/g with internal pore sizes centred around 1.8 nm and further larger pores arising from the sphere packing of the aggregates. The particles were found to be photoluminescent (emission λmax = 326 nm) when exposed to UV light which could be quenched by the addition of nitroaromatic compounds. For example, 99% if the emission was quenched in the presence of 38 ppm of picric acid.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 Royal Society of Chemistry. This is an author-produced version of a paper subsequently published in Polymer Chemistry. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Chemistry (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 14 Jun 2019 12:02 |
Last Modified: | 07 Dec 2021 10:38 |
Status: | Published |
Publisher: | Royal Society of Chemistry |
Refereed: | Yes |
Identification Number: | 10.1039/C9PY00596J |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:147377 |