Surface-Enhanced Raman Spectroscopy of Tribochemically Formed Boundary Films of Refined and Unrefined Canola Oils
The paper reports the investigation of tribochemically formed boundary films of canola oils usingsurface-enhanced Raman spectroscopy. This is the first time that metallic surfaces lubricated by plant oils have been studied using this technique. The results of this work provided strong evidence that...
| Main Authors: | , , |
|---|---|
| Format: | Journal Article |
| Published: |
Springer, AOCS Press
2012
|
| Subjects: | |
| Online Access: | http://www.springer.com/journal/11746 http://hdl.handle.net/20.500.11937/49157 |
| _version_ | 1848758177447804928 |
|---|---|
| author | Chua, W. Chapman, Peter Stachowiak, Gwidon |
| author_facet | Chua, W. Chapman, Peter Stachowiak, Gwidon |
| author_sort | Chua, W. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The paper reports the investigation of tribochemically formed boundary films of canola oils usingsurface-enhanced Raman spectroscopy. This is the first time that metallic surfaces lubricated by plant oils have been studied using this technique. The results of this work provided strong evidence that fatty acids were liberated from the triglyceride structure during sliding to form a fatty acid soap layer on the silver surface. The study also revealed that the fatty acid chains of the unrefined canola oil were more disordered and most likely in a gauche conformation, while that of the refined canola oil weretightly packed and oriented perpendicular to the surface. It is believed that the greater presence of polar minor components in the unrefined oil, such as phospholipids, interfered with the ability of free fatty acids to form a tightly packed monolayer on the silver surface. |
| first_indexed | 2025-11-14T09:39:51Z |
| format | Journal Article |
| id | curtin-20.500.11937-49157 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:39:51Z |
| publishDate | 2012 |
| publisher | Springer, AOCS Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-491572017-03-15T22:56:26Z Surface-Enhanced Raman Spectroscopy of Tribochemically Formed Boundary Films of Refined and Unrefined Canola Oils Chua, W. Chapman, Peter Stachowiak, Gwidon Structure–functional properties Lubricants Lipid chemistry Fats and oils Spectroscopy - Phospholipids The paper reports the investigation of tribochemically formed boundary films of canola oils usingsurface-enhanced Raman spectroscopy. This is the first time that metallic surfaces lubricated by plant oils have been studied using this technique. The results of this work provided strong evidence that fatty acids were liberated from the triglyceride structure during sliding to form a fatty acid soap layer on the silver surface. The study also revealed that the fatty acid chains of the unrefined canola oil were more disordered and most likely in a gauche conformation, while that of the refined canola oil weretightly packed and oriented perpendicular to the surface. It is believed that the greater presence of polar minor components in the unrefined oil, such as phospholipids, interfered with the ability of free fatty acids to form a tightly packed monolayer on the silver surface. 2012 Journal Article http://hdl.handle.net/20.500.11937/49157 http://www.springer.com/journal/11746 Springer, AOCS Press restricted |
| spellingShingle | Structure–functional properties Lubricants Lipid chemistry Fats and oils Spectroscopy - Phospholipids Chua, W. Chapman, Peter Stachowiak, Gwidon Surface-Enhanced Raman Spectroscopy of Tribochemically Formed Boundary Films of Refined and Unrefined Canola Oils |
| title | Surface-Enhanced Raman Spectroscopy of Tribochemically Formed Boundary Films of Refined and Unrefined Canola Oils |
| title_full | Surface-Enhanced Raman Spectroscopy of Tribochemically Formed Boundary Films of Refined and Unrefined Canola Oils |
| title_fullStr | Surface-Enhanced Raman Spectroscopy of Tribochemically Formed Boundary Films of Refined and Unrefined Canola Oils |
| title_full_unstemmed | Surface-Enhanced Raman Spectroscopy of Tribochemically Formed Boundary Films of Refined and Unrefined Canola Oils |
| title_short | Surface-Enhanced Raman Spectroscopy of Tribochemically Formed Boundary Films of Refined and Unrefined Canola Oils |
| title_sort | surface-enhanced raman spectroscopy of tribochemically formed boundary films of refined and unrefined canola oils |
| topic | Structure–functional properties Lubricants Lipid chemistry Fats and oils Spectroscopy - Phospholipids |
| url | http://www.springer.com/journal/11746 http://hdl.handle.net/20.500.11937/49157 |