Ageing and thermal degradation of plasma polymerised thin films derived from Lavandula angustifolia essential oil

被引:19
|
作者
Easton, C. D. [1 ]
Jacob, M. V. [1 ]
机构
[1] James Cook Univ, Sch Engn, Elect Mat Res Lab, Townsville, Qld 4811, Australia
关键词
Plasma polymer; Ellipsometry; FTIR; Oxidation; Sacrificial material; CHROMATOGRAPHY-MASS SPECTROMETRY; GAS-CHROMATOGRAPHY; OPTICAL-PROPERTIES; POLY(METHYL METHACRYLATE); INFRARED-SPECTROSCOPY; DEPOSITION;
D O I
10.1016/j.polymdegradstab.2009.01.010
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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 degrees C. the properties indicate that a phase change occurs in the material. Samples annealed up to 405 degrees 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. (c) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:597 / 603
页数:7
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