N-propylpyridinium Chloride-modified Poly(dimethylsiloxane) Elastomeric Networks: Preparation, Characterization, And Study Of Metal Chloride Adsorption From Ethanol Solutions.

dc.creatorPissetti, Fábio L
dc.creatorMagosso, Herica A
dc.creatorYoshida, Inez V P
dc.creatorGushikem, Yoshitaka
dc.creatorMyernyi, Sergiy O
dc.creatorKholin, Yuriy V
dc.date2007-Oct
dc.date2015-11-27T13:10:14Z
dc.date2015-11-27T13:10:14Z
dc.date.accessioned2018-03-29T01:05:04Z
dc.date.available2018-03-29T01:05:04Z
dc.identifierJournal Of Colloid And Interface Science. v. 314, n. 1, p. 38-45, 2007-Oct.
dc.identifier0021-9797
dc.identifier10.1016/j.jcis.2007.05.040
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/17582428
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/197351
dc.identifier17582428
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1297584
dc.descriptionAn n-propylpyridinium chloride-modified PDMS elastomeric network, PDMS/Py(+)Cl(-), was prepared from linear PDMS chains containing Si(CH(3))(2)OH end-groups cross-linked by 3-chloropropyltrimethoxysilane and posterior reaction with pyridine. PDMS/Py(+)Cl(-) material was structurally characterized by infrared spectroscopy (IR) and solid state (13)C and (29)Si NMR. Thermogravimetric analysis of the product showed good thermal stability, with the initial temperature of weight loss at 450 K. The ion-exchange capacity of the PDMS/Py(+)Cl(-) was 0.65 mmol g(-1). Metal halides, MCl(z) [M=Fe(3+), Cu(2+), and Co(2+)], were adsorbed by the modified solid from ethanol solutions as neutral species by forming the surface anionic complexes MCl(z+n)(n-). The nature of the anionic complex structure was proposed by UV-vis diffuse reflectance spectra. The species adsorbed were FeCl(-)(4), CuCl(2-)(4), and CoCl(2-)(4). The specific sorption capacities and the heterogeneous stability constants of the immobilized metal complexes were determined with the aid of computational procedures. The trend in affinities of PDMS/Py(+)Cl(-) for the metal halides were found to be FeCl(3)>CuCl(2) approximately CoCl(2).
dc.description314
dc.description38-45
dc.languageeng
dc.relationJournal Of Colloid And Interface Science
dc.relationJ Colloid Interface Sci
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAdsorption
dc.subjectDimethylpolysiloxanes
dc.subjectEthanol
dc.subjectHydrocarbons, Chlorinated
dc.subjectMetals
dc.subjectModels, Chemical
dc.subjectMolecular Conformation
dc.subjectPyridinium Compounds
dc.subjectSolutions
dc.subjectSpectrophotometry, Ultraviolet
dc.titleN-propylpyridinium Chloride-modified Poly(dimethylsiloxane) Elastomeric Networks: Preparation, Characterization, And Study Of Metal Chloride Adsorption From Ethanol Solutions.
dc.typeArtículos de revistas


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