Home List of Titles Ageing and thermal degradation of plasma polymerised thin films derived from Lavandula angustifolia essential oil
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/155063
- Ageing and thermal degradation of plasma polymerised thin films derived from Lavandula angustifolia essential oil
- Easton, C. D.; Jacob, M. V.
- The ageing and thermal degradation of polymer thin films derived from the essential oil of Lavandula angustifolia (LA) fabricated using plasma polymerisation were investigated. Spectroscopic ellipsometry and Fourier transform infrared (FTIR) spectroscopy were employed to monitor the optical parameters, thickness and chemical structure of the polyLA films fabricated at various RF powers over a period of 1400 h. The bulk of the degradation under ambient conditions was found to occur within the first 100 h after fabrication. The thermal degradation of the polyLA films was also investigated using the ellipsometry and FTIR. An increase in thermal stability was found for films fabricated at increased RF power levels. Between 200 and 300 °C, the properties indicate that a phase change occurs in the material. Samples annealed up to 405 °C demonstrated minimal residue, with retention ranging between 0.47 and 2.2%. A tuneable degradation onset temperature and minimal residue post-anneal demonstrate that the polyLA films are excellent candidates for sacrificial material in air gap fabrication.
- Publication type
- Journal article
- Polymer Degradation and Stability, Vol. 94, no. 4 (Apr 2009), pp. 597-603
- Publication year
- FOR Code(s)
- 0303 Macromolecular and Materials Chemistry; 0904 Chemical Engineering; 0912 Materials Engineering
- Ellipsometry; Fourier transform infrared spectroscopy; FTIR; Oxidation; Plasma polymers; Sacrificial materials
- Publisher URL
- Copyright © 2009 Elsevier Ltd. All rights reserved.
- Peer reviewed