Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model

Autores
Estenoz, Diana Alejandra; Vega, Jorge Ruben; Oliva, Haydee; Meira, Gregorio Raul
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In high-impact polystyrene (HIPS), the grafting efficiency (GE) is the mass of grafted styrene divided by the total mass of polymerized styrene. The GE along a prepolymerization was determined from the UV size exclusion chromatogram of the total polymer. The UV sensor at 254 nm "sees" only the free and grafted polystyrene (PS) chains, but not the polybutadiene (PB) chains. The data processing involves deconvoluting the UV chromatogram into the chromatograms of the free PS and grafted PS by means of polymerization-SEC model. The GE was determined after adjusting (by trial-and-3error) the predicted UV chromatogram to the measurement. A single adjustment parameter was used: the ratio between the rate of initiation to the monomer and the rate of initiation to the rubber. The method is quick and accurate, and the estimates were verified by solvent extraction-gravimetry. It is also possible to estimate the GE by deconvolution of the differential refractometer chromatogram. However, in this case a detector calibration is required, and the results are less accurate than when employing the UV sensor.
Fil: Estenoz, Diana Alejandra. 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
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
Fil: Oliva, Haydee. Universidad del Zulia; Venezuela
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
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
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oai:ri.conicet.gov.ar:11336/30074
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spelling Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC ModelEstenoz, Diana AlejandraVega, Jorge RubenOliva, HaydeeMeira, Gregorio Raulhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2In high-impact polystyrene (HIPS), the grafting efficiency (GE) is the mass of grafted styrene divided by the total mass of polymerized styrene. The GE along a prepolymerization was determined from the UV size exclusion chromatogram of the total polymer. The UV sensor at 254 nm "sees" only the free and grafted polystyrene (PS) chains, but not the polybutadiene (PB) chains. The data processing involves deconvoluting the UV chromatogram into the chromatograms of the free PS and grafted PS by means of polymerization-SEC model. The GE was determined after adjusting (by trial-and-3error) the predicted UV chromatogram to the measurement. A single adjustment parameter was used: the ratio between the rate of initiation to the monomer and the rate of initiation to the rubber. The method is quick and accurate, and the estimates were verified by solvent extraction-gravimetry. It is also possible to estimate the GE by deconvolution of the differential refractometer chromatogram. However, in this case a detector calibration is required, and the results are less accurate than when employing the UV sensor.Fil: Estenoz, Diana Alejandra. 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; ArgentinaFil: 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; ArgentinaFil: Oliva, Haydee. Universidad del Zulia; VenezuelaFil: 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; ArgentinaTaylor2002-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30074Estenoz, Diana Alejandra; Vega, Jorge Ruben; Oliva, Haydee; Meira, Gregorio Raul; Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model; Taylor; Journal of Liquid Chromatography and Related Technologies; 25; 18; 12-2002; 2781-27931082-6076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1081/JLC-120014949info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-03-31T15:19:53Zoai:ri.conicet.gov.ar:11336/30074instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-03-31 15:19:53.947CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model
title Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model
spellingShingle Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model
Estenoz, Diana Alejandra
title_short Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model
title_full Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model
title_fullStr Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model
title_full_unstemmed Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model
title_sort Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model
dc.creator.none.fl_str_mv Estenoz, Diana Alejandra
Vega, Jorge Ruben
Oliva, Haydee
Meira, Gregorio Raul
author Estenoz, Diana Alejandra
author_facet Estenoz, Diana Alejandra
Vega, Jorge Ruben
Oliva, Haydee
Meira, Gregorio Raul
author_role author
author2 Vega, Jorge Ruben
Oliva, Haydee
Meira, Gregorio Raul
author2_role author
author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In high-impact polystyrene (HIPS), the grafting efficiency (GE) is the mass of grafted styrene divided by the total mass of polymerized styrene. The GE along a prepolymerization was determined from the UV size exclusion chromatogram of the total polymer. The UV sensor at 254 nm "sees" only the free and grafted polystyrene (PS) chains, but not the polybutadiene (PB) chains. The data processing involves deconvoluting the UV chromatogram into the chromatograms of the free PS and grafted PS by means of polymerization-SEC model. The GE was determined after adjusting (by trial-and-3error) the predicted UV chromatogram to the measurement. A single adjustment parameter was used: the ratio between the rate of initiation to the monomer and the rate of initiation to the rubber. The method is quick and accurate, and the estimates were verified by solvent extraction-gravimetry. It is also possible to estimate the GE by deconvolution of the differential refractometer chromatogram. However, in this case a detector calibration is required, and the results are less accurate than when employing the UV sensor.
Fil: Estenoz, Diana Alejandra. 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
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
Fil: Oliva, Haydee. Universidad del Zulia; Venezuela
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
description In high-impact polystyrene (HIPS), the grafting efficiency (GE) is the mass of grafted styrene divided by the total mass of polymerized styrene. The GE along a prepolymerization was determined from the UV size exclusion chromatogram of the total polymer. The UV sensor at 254 nm "sees" only the free and grafted polystyrene (PS) chains, but not the polybutadiene (PB) chains. The data processing involves deconvoluting the UV chromatogram into the chromatograms of the free PS and grafted PS by means of polymerization-SEC model. The GE was determined after adjusting (by trial-and-3error) the predicted UV chromatogram to the measurement. A single adjustment parameter was used: the ratio between the rate of initiation to the monomer and the rate of initiation to the rubber. The method is quick and accurate, and the estimates were verified by solvent extraction-gravimetry. It is also possible to estimate the GE by deconvolution of the differential refractometer chromatogram. However, in this case a detector calibration is required, and the results are less accurate than when employing the UV sensor.
publishDate 2002
dc.date.none.fl_str_mv 2002-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/30074
Estenoz, Diana Alejandra; Vega, Jorge Ruben; Oliva, Haydee; Meira, Gregorio Raul; Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model; Taylor; Journal of Liquid Chromatography and Related Technologies; 25; 18; 12-2002; 2781-2793
1082-6076
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30074
identifier_str_mv Estenoz, Diana Alejandra; Vega, Jorge Ruben; Oliva, Haydee; Meira, Gregorio Raul; Grafting Efficiency in High-Impact Polystyrene by SEC Combined with Theoretical Predictions from a Polymerization-SEC Model; Taylor; Journal of Liquid Chromatography and Related Technologies; 25; 18; 12-2002; 2781-2793
1082-6076
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1081/JLC-120014949
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Taylor
publisher.none.fl_str_mv Taylor
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.720982

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