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dc.contributor.author
Meira, Gregorio Raul
dc.contributor.author
Netopilík, M.
dc.contributor.author
Schnöll Bitai, I.
dc.contributor.author
Potschka, M.
dc.contributor.author
Vega, Jorge Ruben
dc.date.available
2017-10-04T20:26:13Z
dc.date.issued
2007-11
dc.identifier.citation
Meira, Gregorio Raul; Netopilík, M.; Schnöll Bitai, I.; Potschka, M.; Vega, Jorge Ruben; Band Broadening Function in Size Exclusion Chromatography of Polymers: Review of Some Recent Developments; Wiley; Macromolecular Symposia; 258; 1; 11-2007; 186-197
dc.identifier.issn
1022-1360
dc.identifier.uri
http://hdl.handle.net/11336/25947
dc.description.abstract
This article reviews some recent developments on the determination of the Band Broadening Function (BBF) in Size Exclusion Chromatography (SEC) of polymers. It was carried out in the frame of the IUPAC Project: "Data Treatment in Size Exclusion Chromatography of Polymers". The correction for band broadening (BB) is important for quantitative determinations of the molar mass distribution (MMD) of narrow-distributed (or highly multimodal) polymers, and of derived variables such as kinetic parameters. In the narrow range of a molar mass standard, the BBF is uniform and of positive skewness. In a broad chromatographic range, the BBF is non-uniform and skewed; and it can be adequately represented by an exponentially-modified Gaussian function (EMG) of 2 parameters that vary slightly with elution volume: an increasing Gaussian variance and a decreasing exponential decay. Additionally, the total BBF variance remains almost constant if not close to the total exclusion limit. The following methods for determining BBF parameters are reviewed: a) a direct method based on assuming Poisson-distributed MMDs; b) a direct method based on measuring the mass- and molar mass chromatograms of narrow standards; c) a theoretical method based on a stochastic model that is equivalent to the Giddings-Eyring model; and d) a theoretical method based on a deterministic model obtained through an extension of the classical van Deemter expression. Ideally, the correction for BB requires a robust numerical inversion algorithm. However, alternative simplified solutions are also possible.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Band Broadening Function in Size Exclusion Chromatography of Polymers: Review of Some Recent Developments
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-10-04T14:44:44Z
dc.journal.volume
258
dc.journal.number
1
dc.journal.pagination
186-197
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Meira, Gregorio Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Netopilík, M.. Institute of Macromolecular Chemistry; República Checa
dc.description.fil
Fil: Schnöll Bitai, I.. Porzellangasse; Austria
dc.description.fil
Fil: Potschka, M.. Technische Universitat Wien; Austria
dc.description.fil
Fil: Vega, Jorge Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.journal.title
Macromolecular Symposia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/masy.200751221
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/masy.200751221/abstract
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