The in situ synthesis of PbS nanocrystals from lead(II) n-octylxanthate within a 1,3-diisopropenylbenzene–bisphenol A dimethacrylate sulfur copolymer

McNaughter, P. D., Bear, J. C., Mayes, A. G., Parkin, I. P. and O'Brien, P. (2017) The in situ synthesis of PbS nanocrystals from lead(II) n-octylxanthate within a 1,3-diisopropenylbenzene–bisphenol A dimethacrylate sulfur copolymer. Royal Society Open Science, 4 (8).

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Abstract

The synthesis of lead sulfide nanocrystals within a solution processable sulfur ‘inverse vulcanization’ polymer thin film matrix was achieved from the in situ thermal decomposition of lead(II) n-octylxanthate, [Pb(S2COOct)2]. The growth of nanocrystals within polymer thin films from single-source precursors offers a faster route to networks of nanocrystals within polymers when compared with ex situ routes. The ‘inverse vulcanization’ sulfur polymer described herein contains a hybrid linker system which demonstrates high solubility in organic solvents, allowing solution processing of the sulfur-based polymer, ideal for the formation of thin films. The process of nanocrystal synthesis within sulfur films was optimized by observing nanocrystal formation by X-ray photoelectron spectroscopy and X-ray diffraction. Examination of the film morphology by scanning electron microscopy showed that beyond a certain precursor concentration the nanocrystals formed were not only within the film but also on the surface suggesting a loading limit within the polymer. We envisage this material could be used as the basis of a new generation of materials where solution processed sulfur polymers act as an alternative to traditional polymers.

Item Type: Article
Uncontrolled Keywords: ead(ii) xanthate,sulfur polymer,nanocrystals,inverse vulcanization
Faculty \ School: Faculty of Science > School of Chemical Sciences and Pharmacy
Faculty of Science > School of Chemistry
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Depositing User: Pure Connector
Date Deposited: 02 Sep 2017 05:07
Last Modified: 02 Nov 2020 00:48
URI: https://ueaeprints.uea.ac.uk/id/eprint/64730
DOI: 10.1098/rsos.170383

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