Odtma+ And Hdtma+ Organo-montmorillonites Characterization: New Insight By Waxs, Saxs And Surface Charge

dc.creatorBianchi A.E.
dc.creatorFernandez M.
dc.creatorPantanetti M.
dc.creatorVina R.
dc.creatorTorriani I.
dc.creatorSanchez R.M.T.
dc.creatorPunte G.
dc.date2013
dc.date2015-06-25T19:16:00Z
dc.date2015-11-26T15:14:05Z
dc.date2015-06-25T19:16:00Z
dc.date2015-11-26T15:14:05Z
dc.date.accessioned2018-03-28T22:24:11Z
dc.date.available2018-03-28T22:24:11Z
dc.identifier
dc.identifierApplied Clay Science. , v. 83-84, n. , p. 280 - 285, 2013.
dc.identifier1691317
dc.identifier10.1016/j.clay.2013.08.032
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84885033547&partnerID=40&md5=667b100e667eeecea81c6f9eaf8f4c03
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/89380
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/89380
dc.identifier2-s2.0-84885033547
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1258788
dc.descriptionIn this work we investigate the microstructure and properties of organo-montmorillonites (OMts) synthesized by intercalation of a Patagonian Mt with different surfactant/CEC ratios (0.5, 1 and 2) of octadecyl trimethylammonium (ODTMA+) and hexadecyl trimethylammonium (HDTMA+) cations. X-ray diffraction (XRD) patterns showed that in all OMt samples d001 value increases with respect to raw Mt (1.258nm). Small angle and wide angle X-ray scattering (SAXS and WAXS) curves, particle apparent diameters (determined by laser), zeta potential values and scanning electron microscopy (SEM) images, showed the presence of assorted d001 values (which depend on storage conditions), aggregate formation and charge reversal (which varied with loading and cation length) for samples obtained with 1 and 2 CEC. However, for samples intercalated with 0.5 CEC, we found evidence of smaller aggregate formation, no charge reversal, and similar d001 and zeta potential values (both higher than those of Mt). Findings reported here will help attain better conditions to functionalize highly charged Mt making them suitable to be used as nanocomposite precursors for different applications. © 2013 Elsevier B.V.
dc.description83-84
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dc.description280
dc.description285
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dc.languageen
dc.publisher
dc.relationApplied Clay Science
dc.rightsfechado
dc.sourceScopus
dc.titleOdtma+ And Hdtma+ Organo-montmorillonites Characterization: New Insight By Waxs, Saxs And Surface Charge
dc.typeArtículos de revistas


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