Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch

Autores
Linares Veliz, Arturo Bismarck; Jiménez García, Juan Carlos; López, Pedro; de Gáscue, Blanca Rojas
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The polypropylene resistance to biological attacks is related to the lack of functional groups recognizable by microbial enzymatic systems. The incorporation of compatibilizing agents in polypropylene (PP)/starch (S) blends favors the interactions of their components and can potentially induce the material degradation. In order to study the degradation of PP/S blends, films were prepared with a compatibilizing agent (AC), constituted by polypropylene grafted with acrylamide (PP-g-AAm). The films were placed in an Erlenmeyer flask containing 100 mL of a basal mineral medium with microorganisms inoculated in a cellulose filter, taken from an effluent. The FTIR analyzes of the films with the AC agent showed significant differences in the absorption bands, with respect to the control film. The asymmetric stretch signal of the grafted acrylamide that appeared at 3292 cm-1 increased in intensity only in the inoculated blends. In addition, hydrolysis was evidenced by the stretching signal of the OH bond. Abrupt changes were observed in the carbonyl region (1700-1600 cm-1) with the appearance of new bands, which shows the rupture of polymer chains. In the blends DSC analysis, a slight nucleation effect is observed in addition to a considerable increase in the degree of crystallinity, so it is suggested that the degradation could be occurring in the amorphous regions.
Fil: Linares Veliz, Arturo Bismarck. Universidad de Oriente.; Cuba
Fil: Jiménez García, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: López, Pedro. Universidad de Oriente; Venezuela
Fil: de Gáscue, Blanca Rojas. Universidad de Oriente; Venezuela
Materia
BIODEGRADATION
BLENDS
POLYPROPYLENE STARCH
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
OAI Identificador
oai:ri.conicet.gov.ar:11336/125908
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starchLinares Veliz, Arturo BismarckJiménez García, Juan CarlosLópez, Pedrode Gáscue, Blanca RojasBIODEGRADATIONBLENDSPOLYPROPYLENE STARCHhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The polypropylene resistance to biological attacks is related to the lack of functional groups recognizable by microbial enzymatic systems. The incorporation of compatibilizing agents in polypropylene (PP)/starch (S) blends favors the interactions of their components and can potentially induce the material degradation. In order to study the degradation of PP/S blends, films were prepared with a compatibilizing agent (AC), constituted by polypropylene grafted with acrylamide (PP-g-AAm). The films were placed in an Erlenmeyer flask containing 100 mL of a basal mineral medium with microorganisms inoculated in a cellulose filter, taken from an effluent. The FTIR analyzes of the films with the AC agent showed significant differences in the absorption bands, with respect to the control film. The asymmetric stretch signal of the grafted acrylamide that appeared at 3292 cm-1 increased in intensity only in the inoculated blends. In addition, hydrolysis was evidenced by the stretching signal of the OH bond. Abrupt changes were observed in the carbonyl region (1700-1600 cm-1) with the appearance of new bands, which shows the rupture of polymer chains. In the blends DSC analysis, a slight nucleation effect is observed in addition to a considerable increase in the degree of crystallinity, so it is suggested that the degradation could be occurring in the amorphous regions.Fil: Linares Veliz, Arturo Bismarck. Universidad de Oriente.; CubaFil: Jiménez García, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: López, Pedro. Universidad de Oriente; VenezuelaFil: de Gáscue, Blanca Rojas. Universidad de Oriente; VenezuelaUniversidade Federal de Mato Grosso do Sul. Departamento de Quimica2019-04info: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/11336/125908Linares Veliz, Arturo Bismarck; Jiménez García, Juan Carlos; López, Pedro; de Gáscue, Blanca Rojas; Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch; Universidade Federal de Mato Grosso do Sul. Departamento de Quimica; Orbital; 11; 2; 4-2019; 71-821984-6428CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.orbital.ufms.br/index.php/Chemistry/article/view/1360info:eu-repo/semantics/altIdentifier/doi/10.17807/orbital.v11i2.1360info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:18:04Zoai:ri.conicet.gov.ar:11336/125908instacron: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:34982025-10-22 12:18:05.185CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch
title Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch
spellingShingle Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch
Linares Veliz, Arturo Bismarck
BIODEGRADATION
BLENDS
POLYPROPYLENE STARCH
title_short Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch
title_full Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch
title_fullStr Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch
title_full_unstemmed Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch
title_sort Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch
dc.creator.none.fl_str_mv Linares Veliz, Arturo Bismarck
Jiménez García, Juan Carlos
López, Pedro
de Gáscue, Blanca Rojas
author Linares Veliz, Arturo Bismarck
author_facet Linares Veliz, Arturo Bismarck
Jiménez García, Juan Carlos
López, Pedro
de Gáscue, Blanca Rojas
author_role author
author2 Jiménez García, Juan Carlos
López, Pedro
de Gáscue, Blanca Rojas
author2_role author
author
author
dc.subject.none.fl_str_mv BIODEGRADATION
BLENDS
POLYPROPYLENE STARCH
topic BIODEGRADATION
BLENDS
POLYPROPYLENE STARCH
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The polypropylene resistance to biological attacks is related to the lack of functional groups recognizable by microbial enzymatic systems. The incorporation of compatibilizing agents in polypropylene (PP)/starch (S) blends favors the interactions of their components and can potentially induce the material degradation. In order to study the degradation of PP/S blends, films were prepared with a compatibilizing agent (AC), constituted by polypropylene grafted with acrylamide (PP-g-AAm). The films were placed in an Erlenmeyer flask containing 100 mL of a basal mineral medium with microorganisms inoculated in a cellulose filter, taken from an effluent. The FTIR analyzes of the films with the AC agent showed significant differences in the absorption bands, with respect to the control film. The asymmetric stretch signal of the grafted acrylamide that appeared at 3292 cm-1 increased in intensity only in the inoculated blends. In addition, hydrolysis was evidenced by the stretching signal of the OH bond. Abrupt changes were observed in the carbonyl region (1700-1600 cm-1) with the appearance of new bands, which shows the rupture of polymer chains. In the blends DSC analysis, a slight nucleation effect is observed in addition to a considerable increase in the degree of crystallinity, so it is suggested that the degradation could be occurring in the amorphous regions.
Fil: Linares Veliz, Arturo Bismarck. Universidad de Oriente.; Cuba
Fil: Jiménez García, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: López, Pedro. Universidad de Oriente; Venezuela
Fil: de Gáscue, Blanca Rojas. Universidad de Oriente; Venezuela
description The polypropylene resistance to biological attacks is related to the lack of functional groups recognizable by microbial enzymatic systems. The incorporation of compatibilizing agents in polypropylene (PP)/starch (S) blends favors the interactions of their components and can potentially induce the material degradation. In order to study the degradation of PP/S blends, films were prepared with a compatibilizing agent (AC), constituted by polypropylene grafted with acrylamide (PP-g-AAm). The films were placed in an Erlenmeyer flask containing 100 mL of a basal mineral medium with microorganisms inoculated in a cellulose filter, taken from an effluent. The FTIR analyzes of the films with the AC agent showed significant differences in the absorption bands, with respect to the control film. The asymmetric stretch signal of the grafted acrylamide that appeared at 3292 cm-1 increased in intensity only in the inoculated blends. In addition, hydrolysis was evidenced by the stretching signal of the OH bond. Abrupt changes were observed in the carbonyl region (1700-1600 cm-1) with the appearance of new bands, which shows the rupture of polymer chains. In the blends DSC analysis, a slight nucleation effect is observed in addition to a considerable increase in the degree of crystallinity, so it is suggested that the degradation could be occurring in the amorphous regions.
publishDate 2019
dc.date.none.fl_str_mv 2019-04
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/11336/125908
Linares Veliz, Arturo Bismarck; Jiménez García, Juan Carlos; López, Pedro; de Gáscue, Blanca Rojas; Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch; Universidade Federal de Mato Grosso do Sul. Departamento de Quimica; Orbital; 11; 2; 4-2019; 71-82
1984-6428
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125908
identifier_str_mv Linares Veliz, Arturo Bismarck; Jiménez García, Juan Carlos; López, Pedro; de Gáscue, Blanca Rojas; Biodegradability study by FTIR and DSC of polymers films based on polypropylene and cassava starch; Universidade Federal de Mato Grosso do Sul. Departamento de Quimica; Orbital; 11; 2; 4-2019; 71-82
1984-6428
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.orbital.ufms.br/index.php/Chemistry/article/view/1360
info:eu-repo/semantics/altIdentifier/doi/10.17807/orbital.v11i2.1360
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 Universidade Federal de Mato Grosso do Sul. Departamento de Quimica
publisher.none.fl_str_mv Universidade Federal de Mato Grosso do Sul. Departamento de Quimica
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 12.982451

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