Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography

A repeatable separation of polystyrenes according to MW, from 1920 to 520000 u.m.a, has been obtained under adsorption conditions using a method that comprises the use of Lichrospher HPTLC plates, and a controlled, isocratic elution with a 78:22 (v/v) mixture of cyclohexane (Cy)-tetrahydrofuran (THF...

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Autores: Jarne, C., Cebolla, V. L., Membrado, L., Gálvez, E. M., Vela, J., Garriga, R.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2013
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:129989
Acceso en línea:http://zaguan.unizar.es/record/129989
Access Level:acceso abierto
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spelling Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatographyJarne, C.Cebolla, V. L.Membrado, L.Gálvez, E. M.Vela, J.Garriga, R.A repeatable separation of polystyrenes according to MW, from 1920 to 520000 u.m.a, has been obtained under adsorption conditions using a method that comprises the use of Lichrospher HPTLC plates, and a controlled, isocratic elution with a 78:22 (v/v) mixture of cyclohexane (Cy)-tetrahydrofuran (THF). Likewise, UV-densitometric quantification of polystyrenes in mixtures can be achieved, by an intra-plate or an inter-plate procedure, using the corresponding polystyrene calibration curve. In the case or overlapped, unresolved peaks, an average curve of the corresponding polystyrenes can be used. Migration of polystyrenes strongly varies with slight variations in the relative proportion of Cy and THF in the mobile phase. This allows different ranges of MW to be separated as a function of mobile phase composition. Other factors influencing repeatability have been identified. Some reasons have been advanced to explain the current lack of activity in the research on polymer characterization by HPTLC. Old literature results concerning polystyrene separation have also been discussed in the light of modern HPTLC instrumentation. Developed method provides similar information on Molecular Weight Distribution (MWD) to that obtained using Gel Permeation Chromatography (GPC). Advantages and limitations of HPTLC for obtaining polymer MWD have also been discussed.2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://zaguan.unizar.es/record/129989reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/MICINN/FEDERinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1299892026-05-29T13:59:51Z
dc.title.none.fl_str_mv Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
title Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
spellingShingle Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
Jarne, C.
title_short Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
title_full Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
title_fullStr Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
title_full_unstemmed Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
title_sort Revisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
dc.creator.none.fl_str_mv Jarne, C.
Cebolla, V. L.
Membrado, L.
Gálvez, E. M.
Vela, J.
Garriga, R.
author Jarne, C.
author_facet Jarne, C.
Cebolla, V. L.
Membrado, L.
Gálvez, E. M.
Vela, J.
Garriga, R.
author_role author
author2 Cebolla, V. L.
Membrado, L.
Gálvez, E. M.
Vela, J.
Garriga, R.
author2_role author
author
author
author
author
description A repeatable separation of polystyrenes according to MW, from 1920 to 520000 u.m.a, has been obtained under adsorption conditions using a method that comprises the use of Lichrospher HPTLC plates, and a controlled, isocratic elution with a 78:22 (v/v) mixture of cyclohexane (Cy)-tetrahydrofuran (THF). Likewise, UV-densitometric quantification of polystyrenes in mixtures can be achieved, by an intra-plate or an inter-plate procedure, using the corresponding polystyrene calibration curve. In the case or overlapped, unresolved peaks, an average curve of the corresponding polystyrenes can be used. Migration of polystyrenes strongly varies with slight variations in the relative proportion of Cy and THF in the mobile phase. This allows different ranges of MW to be separated as a function of mobile phase composition. Other factors influencing repeatability have been identified. Some reasons have been advanced to explain the current lack of activity in the research on polymer characterization by HPTLC. Old literature results concerning polystyrene separation have also been discussed in the light of modern HPTLC instrumentation. Developed method provides similar information on Molecular Weight Distribution (MWD) to that obtained using Gel Permeation Chromatography (GPC). Advantages and limitations of HPTLC for obtaining polymer MWD have also been discussed.
publishDate 2013
dc.date.none.fl_str_mv 2013
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dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/129989
url http://zaguan.unizar.es/record/129989
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/MICINN/FEDER
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instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
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