Ahmad, Jakaria, Bazaka, Kateryna, Whittle, Jason D., Michelmore, Andrew, and Jacob, Mohan V. (2015) Structural characterization of γ-terpinene thin films using mass spectroscopy and X-Ray photoelectron spectroscopy. Plasma Processes and Polymers, 12 (10). pp. 1085-1094.

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Abstract

Understanding the polymerization mechanism of a precursor is indispensable to enhance the requisite material properties. In situ mass spectroscopy and X-ray photoelectron spectroscopy is used in this study to understand the RF plasma polymerization of γ-terpinene. High-resolution mass spectra positive ion mass spectrometry data of the plasma phase demonstrates the presence of oligomeric species of the type [M+H]+ and [2M+H]+, where M represents a unit of the starting material. In addition, there is abundant fragmented species, with most dominant being [M+] (136 m/z), C10H13+ (133 m/z), C9H11+ (119 m/z), and C7H9+ (93 m/z). The results reported in this manuscript enables to comprehend the relationship between the degree of incorporation of oxygen and the rate of deposition with the input RF power.

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