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https://hdl.handle.net/2440/138806
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Type: | Journal article |
Title: | Electrochemical Synthesis of Poly(trisulfides) |
Author: | Pople, J.M.M. Nicholls, T.P. Pham, L.N. Bloch, W.M. Lisboa, L.S. Perkins, M.V. Gibson, C.T. Coote, M.L. Jia, Z. Chalker, J.M. |
Citation: | Journal of the American Chemical Society, 2023; 145(21):11798-11810 |
Publisher: | American Chemical Society (ACS) |
Issue Date: | 2023 |
ISSN: | 0002-7863 1520-5126 |
Statement of Responsibility: | Jasmine M. M. Pople, Thomas P. Nicholls, Le Nhan Pham, Witold M. Bloch, Lynn S. Lisboa, Michael V. Perkins, Christopher T. Gibson, Michelle L. Coote, Zhongfan Jia, and Justin M. Chalker |
Abstract: | With increasing interest in high sulfur content polymers, there is a need to develop new methods for their synthesis that feature improved safety and control of structure. In this report, electrochemically initiated ring-opening polymerization of norbornene-based cyclic trisulfide monomers delivered well-defined, linear poly(trisulfides), which were solution processable. Electrochemistry provided a controlled initiation step that obviates the need for hazardous chemical initiators. The high temperatures required for inverse vulcanization are also avoided resulting in an improved safety profile. Density functional theory calculations revealed a reversible "self-correcting" mechanism that ensures trisulfide linkages between monomer units. This control over sulfur rank is a new benchmark for high sulfur content polymers and creates opportunities to better understand the effects of sulfur rank on polymer properties. Thermogravimetric analysis coupled with mass spectrometry revealed the ability to recycle the polymer to the cyclic trisulfide monomer by thermal depolymerization. The featured poly(trisulfide) is an effective gold sorbent, with potential applications in mining and electronic waste recycling. A water-soluble poly(trisulfide) containing a carboxylic acid group was also produced and found to be effective in the binding and recovery of copper from aqueous media. |
Rights: | © 2023 American Chemical Society |
DOI: | 10.1021/jacs.3c03239 |
Grant ID: | http://purl.org/au-research/grants/arc/DP200100090 http://purl.org/au-research/grants/arc/DP210100025 http://purl.org/au-research/grants/arc/LP200301660 http://purl.org/au-research/grants/arc/LP200301661 http://purl.org/au-research/grants/arc/DP230100587 http://purl.org/au-research/grants/arc/FT220100054 |
Published version: | http://dx.doi.org/10.1021/jacs.3c03239 |
Appears in Collections: | Physics publications |
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