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Cysteamine functionalised reduced graphene oxide modification of maleated poly(propylene)
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Abbas, Syeda, Kelly, Nicole L., Patias, Georgios, Hanna, John V. and McNally, Tony (2020) Cysteamine functionalised reduced graphene oxide modification of maleated poly(propylene). Polymer, 203 . 122750. doi:10.1016/j.polymer.2020.122750 ISSN 0032-3861.
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WRAP-cysteamine-functionalised-reduced-graphene-oxide-modification-maleated-poly(propylene)-McNally-2020.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (11Mb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.polymer.2020.122750
Abstract
Graphene oxide (GO) was reduced (rGO) and then functionalised with an amino terminated thiol molecule (cysteamine) via a thiol-ene click chemistry reaction to produce reduced graphene oxide-cysteamine (rGO-cyst). The presence of the C–S bond in the X-ray photoelectron spectrum (XPS) confirmed the reaction between the thiol in cysteamine and both the double bonds present on the rGO surface and the pyrazolic structures formed due to reduction. The rGO-cysyteamine was reacted with polypropylene-graft-maleic anhydride (PP-g-MA) to produce PP-g-MA-rGO-cysteamine, where the free amino group present on the rGO-cysteamine reacts with the maleic anhydride group of PP-g-MA. This was confirmed from solid state 13C Magic-Angle-Spinning, Nuclear Magnetic Resonance (MAS NMR), Fourier transform infrared (FTIR) and XPS studies which demonstrated that a mixture of open and closed ring structures based on amides, imides and imines were formed. Growth of the PP chain on the rGO surface was observed from electron microscopy imaging. Cysteamine acts like a ‘cross-linker’ between the rGO and PP-g-MA, increasing interfacial interaction between the two phases resulting in increased thermal stability and altering the crystallization behaviour of the maleated PP. The approach described could be used to compatabilise graphene oxide and a range of polymers to produce functional composite materials.
Item Type: | Journal Article | ||||||||||||||||||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Science > Physics Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
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Library of Congress Subject Headings (LCSH): | Polypropylene, Graphene, Graphene -- Oxidation, Composite materials -- Testing, Chemical engineering, Nanocomposites (Materials) | ||||||||||||||||||||||||
Journal or Publication Title: | Polymer | ||||||||||||||||||||||||
Publisher: | Elsevier Science BV | ||||||||||||||||||||||||
ISSN: | 0032-3861 | ||||||||||||||||||||||||
Official Date: | 26 August 2020 | ||||||||||||||||||||||||
Dates: |
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Volume: | 203 | ||||||||||||||||||||||||
Article Number: | 122750 | ||||||||||||||||||||||||
DOI: | 10.1016/j.polymer.2020.122750 | ||||||||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||||||||
Date of first compliant deposit: | 9 July 2020 | ||||||||||||||||||||||||
Date of first compliant Open Access: | 2 July 2021 | ||||||||||||||||||||||||
RIOXX Funder/Project Grant: |
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