Metal ions adsorption from ethanol solutions on ethylenediamine-modi fled poly(dimethylsiloxane) elastomeric network

dc.creatorPissetti, FL
dc.creatorYoshida, IVR
dc.creatorGushikem, Y
dc.creatorKholin, YV
dc.date2008
dc.dateOCT 1
dc.date2014-07-30T14:01:28Z
dc.date2015-11-26T18:06:50Z
dc.date2014-07-30T14:01:28Z
dc.date2015-11-26T18:06:50Z
dc.date.accessioned2018-03-29T00:48:59Z
dc.date.available2018-03-29T00:48:59Z
dc.identifierColloids And Surfaces A-physicochemical And Engineering Aspects. Elsevier Science Bv, v. 328, n. 41699, n. 21, n. 27, 2008.
dc.identifier0927-7757
dc.identifierWOS:000260205000004
dc.identifier10.1016/j.colsurfa.2008.06.016
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56573
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56573
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1293446
dc.descriptionAn ethylenediamine-modified elastomeric network was obtained by the polycondensation reaction between poly(dimethylsiloxane), PDMS, with 2-aminoethyl-3-aminopropyltrimethoxysilane. The polymeric material was structurally characterized by its infrared spectrum and its solid state C-13 and Si-29 NMR. The Si-29 NMR peaks at -70 and -61 ppm correspond to the Si environments in CSi(OSi)(3) and Gi(OH)(OSi)(2) units respectively, and a peak at -24 ppm is associated with (C2Si(OSi)(2). Thermogravimetric analysis of the product showed good thermal stability and differential scanning calorimetry showed a glass transition temperature from 150 to 160 K, with no evidence of crystallization. From the adsorption isotherms of Fe(III), Ni(II) and Cu(II), from an ethanol solution at 298 K, onto the polymeric network, the equilibrium constants were calculated for the adsorption reactions of these metal ions at the solid-solution interface. The following stability constants, P, and the adsorption capacities, t(Q) (in mmol of metal per gram of the adsorbent) were determined: (a) Cu(II): log beta = 4.01 (0.03), t(Q) = 1.27 (0.02); (b) Fe(III): log beta = 3.49 (0.03), t(Q) = 1.45 (0.05); (C) Ni(II): log beta = 2.78 (0.06), t(Q) = 0.52 (0.05), where the numbers in parenthesis are the standard deviations. (C) 2008 Elsevier B.V. All rights reserved.
dc.description328
dc.description41699
dc.description21
dc.description27
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationColloids And Surfaces A-physicochemical And Engineering Aspects
dc.relationColloid Surf. A-Physicochem. Eng. Asp.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectPoly(dimethylsiloxane)
dc.subjectEthylenediamine
dc.subjectElastomeric network
dc.subjectMetal adsorption
dc.subjectAdsorption equilibria
dc.subjectNuclear Magnetic-resonance
dc.subjectPermeability Evaluation
dc.subjectBis-ethylenediamine
dc.subjectPolymeric Membranes
dc.subjectHybrid Material
dc.subjectAmino-groups
dc.subjectComplexes
dc.subjectDerivatives
dc.subjectParticles
dc.subjectChloride
dc.titleMetal ions adsorption from ethanol solutions on ethylenediamine-modi fled poly(dimethylsiloxane) elastomeric network
dc.typeArtículos de revistas


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