Elemental Mapping In Natural Rubber Latex Films By Electron Energy Loss Spectroscopy Associated With Transmission Electron Microscopy.

dc.creatorRippel, Márcia Maria
dc.creatorPaula Leite, Carlos Alberto
dc.creatorGalembeck, Fernando
dc.date2002-Jun
dc.date2015-11-27T12:49:06Z
dc.date2015-11-27T12:49:06Z
dc.date.accessioned2018-03-29T00:56:12Z
dc.date.available2018-03-29T00:56:12Z
dc.identifierAnalytical Chemistry. v. 74, n. 11, p. 2541-6, 2002-Jun.
dc.identifier0003-2700
dc.identifier
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/12069235
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/195065
dc.identifier12069235
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1295298
dc.descriptionElement distribution maps from Hevea brasiliensis natural rubber latex thin films were obtained, by electron energy-loss spectroscopic imaging in a low-energy (80 kV) transmission electron microscope. C, N, O, P, Na, Ca, Mg, Al, Si, and S maps are presented for latex fractionated by centrifugation, either followed by dialysis or not. Most elements forming non-carbon compounds are concentrated in small, electron-dense spots surrounded by a carbon-rich matrix of polymer, thus showing that the rubber is filled with small particles compatible with the polyisoprene matrix. Ca distribution is unique, since it closely parallels the C distribution, evidencing an important role for -COO(-)-Ca2+-COO- ionic bridges in the structure of natural rubber.
dc.description74
dc.description2541-6
dc.languageeng
dc.relationAnalytical Chemistry
dc.relationAnal. Chem.
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectDialysis
dc.subjectElements
dc.subjectLatex
dc.subjectMembranes, Artificial
dc.subjectMicroscopy, Electron
dc.subjectPlants
dc.subjectSpectrometry, Mass, Electrospray Ionization
dc.titleElemental Mapping In Natural Rubber Latex Films By Electron Energy Loss Spectroscopy Associated With Transmission Electron Microscopy.
dc.typeArtículos de revistas


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