Abstract
In the present study, we report on the swelling properties of poly(2–hydroxyethyl methacrylate) (PHEMA) and PHEMA/carbon black (CB) nanocomposite layers, used for volatile organic compounds (VOCs) detection. In particular, by means of a simple optical method based on thin film interferometry, the swelling, is studied and measured in ethanol vapors (max 1%). The method is very sensitive and the swelling in the range of only few nanometers is measured. Interestingly we find that the nanocomposite undergoes a more pronounced swelling process with respect to the pristine polymer. Ethanol diffusion coefficient in the nanocomposite was evaluated too.
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Ferrara, V.L., Massera, E., Miglietta, M.L., Polichetti, T., Rametta, G., Di Francia, G. (2010). Investigation of the Swelling Properties of PHEMA and PHEMA/CB for Sensing Application. In: Malcovati, P., Baschirotto, A., d'Amico, A., Natale, C. (eds) Sensors and Microsystems. Lecture Notes in Electrical Engineering, vol 54. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3606-3_5
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DOI: https://doi.org/10.1007/978-90-481-3606-3_5
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