Investigation of the swelling properties of PHEMA and PHEMA/CB for sensing application

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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. © 2010 Springer Science+Business Media B.V.
Original languageEnglish
DOIs
Publication statusPublished - 2010
Event14th Italian Conference on Sensors and Microsystems, AISEM 2009 - , Italy
Duration: 1 Jan 2010 → …

Conference

Conference14th Italian Conference on Sensors and Microsystems, AISEM 2009
CountryItaly
Period1/1/10 → …

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All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering

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