XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems
X-ray photoelectron spectroscopy (XPS) has been utilised to investigate the influence of poly(ethylene glycol) (PEG) substituents on fundamental interactions in ionic liquids (ILs). A series of monocationic and dicationic PEG-functionalised IL systems that are based upon imidazolium, pyridinium and...
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| Format: | Thesis (University of Nottingham only) |
| Language: | English |
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2019
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| Online Access: | https://eprints.nottingham.ac.uk/56228/ |
| _version_ | 1848799297912438784 |
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| author | Dick, J.E. |
| author_facet | Dick, J.E. |
| author_sort | Dick, J.E. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | X-ray photoelectron spectroscopy (XPS) has been utilised to investigate the influence of poly(ethylene glycol) (PEG) substituents on fundamental interactions in ionic liquids (ILs). A series of monocationic and dicationic PEG-functionalised IL systems that are based upon imidazolium, pyridinium and pyrrolidinium cation have been investigated. A robust C 1s fitting model has been developed for all PEG-functionalised ILs investigated and comparison made to their alkyl substituted analogues.
A systematic study of the PEG-functionalised IL has revealed a significant difference in the electronic structures of the compound where the first oxygen in an alkyl is moved from the Beta to the alpha position.
In the absence of a robust alkyl chain substituent, a new method for charge referencing IL core binding energies was developed. While an investigation into the BEs of a series of PEG-functionalised chlorozincate(II)-based systems with respect to their alkyl substituted analogue, as probe of Lewis acidity, indicated similarity in BEs. Therefore, suggesting that both IL set can be employed in predicting the Lewis acidity of IL systems. |
| first_indexed | 2025-11-14T20:33:26Z |
| format | Thesis (University of Nottingham only) |
| id | nottingham-56228 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:33:26Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-562282025-02-28T14:25:55Z https://eprints.nottingham.ac.uk/56228/ XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems Dick, J.E. X-ray photoelectron spectroscopy (XPS) has been utilised to investigate the influence of poly(ethylene glycol) (PEG) substituents on fundamental interactions in ionic liquids (ILs). A series of monocationic and dicationic PEG-functionalised IL systems that are based upon imidazolium, pyridinium and pyrrolidinium cation have been investigated. A robust C 1s fitting model has been developed for all PEG-functionalised ILs investigated and comparison made to their alkyl substituted analogues. A systematic study of the PEG-functionalised IL has revealed a significant difference in the electronic structures of the compound where the first oxygen in an alkyl is moved from the Beta to the alpha position. In the absence of a robust alkyl chain substituent, a new method for charge referencing IL core binding energies was developed. While an investigation into the BEs of a series of PEG-functionalised chlorozincate(II)-based systems with respect to their alkyl substituted analogue, as probe of Lewis acidity, indicated similarity in BEs. Therefore, suggesting that both IL set can be employed in predicting the Lewis acidity of IL systems. 2019-07-17 Thesis (University of Nottingham only) NonPeerReviewed application/pdf en arr https://eprints.nottingham.ac.uk/56228/1/Ejike%20Dick%202019.pdf Dick, J.E. (2019) XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems. PhD thesis, University of Nottingham. X-ray photoelectron spectroscopy; Ionic liquids; Lewis acidity; Poly(ethylene glycol) (PEG) substituents |
| spellingShingle | X-ray photoelectron spectroscopy; Ionic liquids; Lewis acidity; Poly(ethylene glycol) (PEG) substituents Dick, J.E. XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems |
| title | XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems |
| title_full | XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems |
| title_fullStr | XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems |
| title_full_unstemmed | XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems |
| title_short | XPS of PEG-functionalised ionic liquids: towards chlorozincate-based systems |
| title_sort | xps of peg-functionalised ionic liquids: towards chlorozincate-based systems |
| topic | X-ray photoelectron spectroscopy; Ionic liquids; Lewis acidity; Poly(ethylene glycol) (PEG) substituents |
| url | https://eprints.nottingham.ac.uk/56228/ |