dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorKopp, Willian
dc.creatorBarud, Hernane S.
dc.creatorPaz, Marcelo F.
dc.creatorBueno, Luciano A.
dc.creatorGiordano, Raquel L. C.
dc.creatorRibeiro, Sidney José Lima
dc.date2014-05-20T15:32:35Z
dc.date2016-10-25T18:08:53Z
dc.date2014-05-20T15:32:35Z
dc.date2016-10-25T18:08:53Z
dc.date2012-08-01
dc.date.accessioned2017-04-06T00:28:34Z
dc.date.available2017-04-06T00:28:34Z
dc.identifierJournal of Sol-gel Science and Technology. Dordrecht: Springer, v. 63, n. 2, p. 219-223, 2012.
dc.identifier0928-0707
dc.identifierhttp://hdl.handle.net/11449/41454
dc.identifierhttp://acervodigital.unesp.br/handle/11449/41454
dc.identifier10.1007/s10971-012-2749-z
dc.identifierWOS:000306846700004
dc.identifierhttp://dx.doi.org/10.1007/s10971-012-2749-z
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/884158
dc.descriptionThe addition of calcium chloride eletrolyte to sodium polyphosphate solutions lead to Calcium polyphosphate coacervates. The effects of a thermal treatment were investigated with the objective to increase the relative stability of the obtained material. Thermogravimetry analysis indicates that coacervates became less hydrophilic and more thermally stable after the thermal treatment. Crystallization was identified through differential scanning calorimetry and X-ray diffraction. Morphological changes were observed after the thermal treatment by scanning electron microscopy. N-2 adsorption-desorption isotherms suggest that both materials, thermally treated or not, display type IV isotherms, low superficial area and mesoporous structure. Stability experiments in solutions at different pH values show that the thermally treated calcium polyphosphate is relatively more stable than the non-treated coacervate.
dc.languageeng
dc.publisherSpringer
dc.relationJournal of Sol-Gel Science and Technology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCalcium polyphosphate
dc.subjectPolyeletrolite coacervation
dc.subjectPhosphate gel
dc.subjectThermal treatment
dc.titleCalcium polyphosphate coacervates: effects of thermal treatment
dc.typeOtro


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