The effects of temperature of condensation on the thermal stability and morphology of 1,4-phenylenediamine-1-propylsilica xerogels

dc.creatorGay, D
dc.creatorGushikem, Y
dc.creatorMoro, C
dc.creatorCosta, T
dc.creatorBenvenutti, E
dc.date2005
dc.dateMAY
dc.date2014-11-20T02:29:05Z
dc.date2015-11-26T17:12:22Z
dc.date2014-11-20T02:29:05Z
dc.date2015-11-26T17:12:22Z
dc.date.accessioned2018-03-29T00:00:46Z
dc.date.available2018-03-29T00:00:46Z
dc.identifierJournal Of Sol-gel Science And Technology. Springer, v. 34, n. 2, n. 189, n. 195, 2005.
dc.identifier0928-0707
dc.identifierWOS:000229218100012
dc.identifier10.1007/s10971-005-1365-6
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/73824
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/73824
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/73824
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1281308
dc.description1,4- phenylenediamine-1-propylsilica hybrid xerogels were obtained for two composition at different temperatures of gelation, from 5 up to 70 degrees C. The morphological effects produced by the different gelation temperatures were investigated by using N-2 adsorption-desorption isotherms and scanning electron microscopy. The thermal stability of the organic groups and their distribution on the xerogel matrix, i. e. the fraction of the organic groups that were trapped in closed pores, formed during the xerogel synthesis, and the fraction of organic groups present on the surface, were obtained by using infrared thermal analysis. The higher porosity of the xerogels and the higher thermal stability of the organic groups were achieved for samples gelled at 25 degrees C.
dc.description34
dc.description2
dc.description189
dc.description195
dc.languageen
dc.publisherSpringer
dc.publisherDordrecht
dc.publisherHolanda
dc.relationJournal Of Sol-gel Science And Technology
dc.relationJ. Sol-Gel Sci. Technol.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectsol-gel
dc.subjectFTIR thermal analysis
dc.subjectgelation temperature
dc.subjectAnilinepropylsilica Xerogel
dc.subjectPhysical-properties
dc.subjectOrganic Polymers
dc.subjectHybrid Materials
dc.subjectCatalyst
dc.titleThe effects of temperature of condensation on the thermal stability and morphology of 1,4-phenylenediamine-1-propylsilica xerogels
dc.typeArtículos de revistas


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