Polymer-BaTiO 3 composites

dc.contributor.author	Μανώλη, Κυριακή	el
dc.contributor.author	Οικονόμου, Πέτρος	el
dc.contributor.author	Βαλαμόντες, Ευάγγελος Σ.	el
dc.contributor.author	Ράπτης, Ιωάννης Α.	el
dc.contributor.author	Σανοπούλου, Μερόπη	el
dc.date.accessioned	2015-05-18T14:22:51Z
dc.date.available	2015-05-18T14:22:51Z
dc.date.issued	2015-05-18
dc.identifier.uri	http://hdl.handle.net/11400/10650
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://eu.wiley.com/	en
dc.subject	Barium titanate
dc.subject	Capacitive sensors
dc.subject	dielectric properties
dc.subject	nanocomposites
dc.subject	Sensors
dc.subject	Τιτανικό βάριο
dc.subject	Αισθητήρες πυκνωτή
dc.subject	Διηλεκτρικές ιδιότητες
dc.subject	Νανοσυνθέτες
dc.subject	Αισθητήρες
dc.title	Polymer-BaTiO 3 composites	en
heal.type	journalArticle
heal.secondaryTitle	dielectric constant and vapor sensing properties in chemocapacitor applications	en
heal.classification	Technology
heal.classification	Electrical engineering
heal.classification	Τεχνολογία
heal.classification	Ηλεκτρολογία Μηχανολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://zbw.eu/stw/descriptor/18426-4
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Ηλεκτρολογία Μηχανολογία
heal.keywordURI	http://lod.nal.usda.gov/33331
heal.keywordURI	http://lod.nal.usda.gov/138053
heal.identifier.secondary	DOI: 10.1002/app.35362
heal.language	en
heal.access	campus
heal.publicationDate	2012-08-15
heal.bibliographicCitation	MANOLI, K., OIKONOMOU, P., VALAMONTES, E.S., RAPTIS, I.A. & SANOPOULOU, M. (2012). Polymer-BaTiO 3 composites: dielectric constant and vapor sensing properties in chemocapacitor applications. Journal of Applied Polymer Science. [online] 125 (4). p. 2577-2584. Available from: http://eu.wiley.com/[Accessed 29/01/2012]	en
heal.abstract	In this work, composite materials, prepared by inclusion of various amounts of BaTiO 3 nanoparticles in PBMA and PHEMA polymer matrices, were characterized in respect to their dielectric properties and then used as the sensing layer of capacitive-type sensors. BaTiO 3 was found to be less effective in enhancing the permittivity of PHEMA, as compared to PBMA, in the range of 1 kHz-1 MHz, possibly due to the observed lower quality of dispersion in the polymer matrix and the higher polarity of the polymer in the former case. The response of the composite-based chemocapacitors to four vapor analytes, covering a wide range of dielectric constants, was studied in relation to the BaTiO 3 load. In all cases, with increasing amount of BaTiO 3 load, the absolute value of capacitance response was increased, due to the corresponding increase of the initial capacitance of the sensing composite layer. However, the corresponding normalized (to the initial capacitance of the sensing composite layer) capacitance values were reduced, due to the decreased volume fraction of the sorbing polymer material in the composite matrix. An exception to this trend, observed upon exposure of the PBMA/BaTiO 3 chemocapacitors to low humidity levels, is also presented and discussed.	en
heal.publisher	Wiley	en
heal.journalName	Journal of Applied Polymer Science	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true