On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine

Autores
Picco, Agustin Silvio; Kraska, Martin; Didzoleit, Haiko; Appel, Cristian; Silbestri, Gustavo Fabián; Azzaroni, Omar; Stühn, Bernd; Ceolin, Marcelo Raul
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The supramacromolecular structure of core–shell amphiphilic macromolecules (CAMs) with hyperbranched polyethyleneimine (HPEI) cores and fatty acid chain shells (HPEI-Cn) for different chain lengths was investigated both, in colloidal suspension, solid phase and at the air–water interface using Small Angle X-ray Scattering (SAXS), Wide Angle X-ray Scattering (WAXS), X-ray Reflectometry (XRR) and Langmuir isotherms. At low temperatures colloidal toluene suspensions of the HPEI-Cn polymers form, as evidenced by peaks arising in the structure factor of the system showing mean particle-to-particle distances correlated with the length of the aliphatic chains forming the shells of HPEI-Cn unimicelles. The CAM sizes as found from the SAXS experiments also display a clear dependence on shell thickness suggesting that the aliphatic chains adopt a brush-like configuration. After solvent extraction, HPEI-Cn adopts ordered structures with hexagonal packing of the aliphatic chains. Submitted to lateral pressure Π at the air–water interface, HPEI-Cn undergoes a disorder–order transition with increasing transition pressure for increasing chain lengths. The CAMs show different behaviors in-plane and out-of-plane. While out-of-plane the aliphatic chains behave as a brush remaining almost fully unfolded, whereas parallel to the air–water interface the chains fold down in a mushroom way with increasing lateral pressure Π.
Fil: Picco, Agustin Silvio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Kraska, Martin. Universitat Technische Darmstadt; Alemania
Fil: Didzoleit, Haiko. Universitat Technische Darmstadt; Alemania
Fil: Appel, Cristian. Universitat Technische Darmstadt; Alemania
Fil: Silbestri, Gustavo Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Azzaroni, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Stühn, Bernd. Universitat Technische Darmstadt; Alemania
Fil: Ceolin, Marcelo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Materia
Hyperbranched Polymers
Core–Shell Amphiphilic Macromolecules
X-Ray Scattering
X-Ray Reflectometry
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:11336/32273
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/32273
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneiminePicco, Agustin SilvioKraska, MartinDidzoleit, HaikoAppel, CristianSilbestri, Gustavo FabiánAzzaroni, OmarStühn, BerndCeolin, Marcelo RaulHyperbranched PolymersCore–Shell Amphiphilic MacromoleculesX-Ray ScatteringX-Ray Reflectometryhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The supramacromolecular structure of core–shell amphiphilic macromolecules (CAMs) with hyperbranched polyethyleneimine (HPEI) cores and fatty acid chain shells (HPEI-Cn) for different chain lengths was investigated both, in colloidal suspension, solid phase and at the air–water interface using Small Angle X-ray Scattering (SAXS), Wide Angle X-ray Scattering (WAXS), X-ray Reflectometry (XRR) and Langmuir isotherms. At low temperatures colloidal toluene suspensions of the HPEI-Cn polymers form, as evidenced by peaks arising in the structure factor of the system showing mean particle-to-particle distances correlated with the length of the aliphatic chains forming the shells of HPEI-Cn unimicelles. The CAM sizes as found from the SAXS experiments also display a clear dependence on shell thickness suggesting that the aliphatic chains adopt a brush-like configuration. After solvent extraction, HPEI-Cn adopts ordered structures with hexagonal packing of the aliphatic chains. Submitted to lateral pressure Π at the air–water interface, HPEI-Cn undergoes a disorder–order transition with increasing transition pressure for increasing chain lengths. The CAMs show different behaviors in-plane and out-of-plane. While out-of-plane the aliphatic chains behave as a brush remaining almost fully unfolded, whereas parallel to the air–water interface the chains fold down in a mushroom way with increasing lateral pressure Π.Fil: Picco, Agustin Silvio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Kraska, Martin. Universitat Technische Darmstadt; AlemaniaFil: Didzoleit, Haiko. Universitat Technische Darmstadt; AlemaniaFil: Appel, Cristian. Universitat Technische Darmstadt; AlemaniaFil: Silbestri, Gustavo Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Azzaroni, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Stühn, Bernd. Universitat Technische Darmstadt; AlemaniaFil: Ceolin, Marcelo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaAcademic Press Inc Elsevier Science2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/32273Ceolin, Marcelo Raul; Stühn, Bernd; Azzaroni, Omar; Appel, Cristian; Didzoleit, Haiko; Kraska, Martin; et al.; On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 436; 7-2014; 243-2500021-9797CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2014.06.034info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0021979714004536info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:45:27Zoai:ri.conicet.gov.ar:11336/32273instacron: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:34982025-11-12 09:45:28.156CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine
title On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine
spellingShingle On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine
Picco, Agustin Silvio
Hyperbranched Polymers
Core–Shell Amphiphilic Macromolecules
X-Ray Scattering
X-Ray Reflectometry
title_short On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine
title_full On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine
title_fullStr On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine
title_full_unstemmed On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine
title_sort On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine
dc.creator.none.fl_str_mv Picco, Agustin Silvio
Kraska, Martin
Didzoleit, Haiko
Appel, Cristian
Silbestri, Gustavo Fabián
Azzaroni, Omar
Stühn, Bernd
Ceolin, Marcelo Raul
author Picco, Agustin Silvio
author_facet Picco, Agustin Silvio
Kraska, Martin
Didzoleit, Haiko
Appel, Cristian
Silbestri, Gustavo Fabián
Azzaroni, Omar
Stühn, Bernd
Ceolin, Marcelo Raul
author_role author
author2 Kraska, Martin
Didzoleit, Haiko
Appel, Cristian
Silbestri, Gustavo Fabián
Azzaroni, Omar
Stühn, Bernd
Ceolin, Marcelo Raul
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Hyperbranched Polymers
Core–Shell Amphiphilic Macromolecules
X-Ray Scattering
X-Ray Reflectometry
topic Hyperbranched Polymers
Core–Shell Amphiphilic Macromolecules
X-Ray Scattering
X-Ray Reflectometry
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 supramacromolecular structure of core–shell amphiphilic macromolecules (CAMs) with hyperbranched polyethyleneimine (HPEI) cores and fatty acid chain shells (HPEI-Cn) for different chain lengths was investigated both, in colloidal suspension, solid phase and at the air–water interface using Small Angle X-ray Scattering (SAXS), Wide Angle X-ray Scattering (WAXS), X-ray Reflectometry (XRR) and Langmuir isotherms. At low temperatures colloidal toluene suspensions of the HPEI-Cn polymers form, as evidenced by peaks arising in the structure factor of the system showing mean particle-to-particle distances correlated with the length of the aliphatic chains forming the shells of HPEI-Cn unimicelles. The CAM sizes as found from the SAXS experiments also display a clear dependence on shell thickness suggesting that the aliphatic chains adopt a brush-like configuration. After solvent extraction, HPEI-Cn adopts ordered structures with hexagonal packing of the aliphatic chains. Submitted to lateral pressure Π at the air–water interface, HPEI-Cn undergoes a disorder–order transition with increasing transition pressure for increasing chain lengths. The CAMs show different behaviors in-plane and out-of-plane. While out-of-plane the aliphatic chains behave as a brush remaining almost fully unfolded, whereas parallel to the air–water interface the chains fold down in a mushroom way with increasing lateral pressure Π.
Fil: Picco, Agustin Silvio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Kraska, Martin. Universitat Technische Darmstadt; Alemania
Fil: Didzoleit, Haiko. Universitat Technische Darmstadt; Alemania
Fil: Appel, Cristian. Universitat Technische Darmstadt; Alemania
Fil: Silbestri, Gustavo Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Azzaroni, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Stühn, Bernd. Universitat Technische Darmstadt; Alemania
Fil: Ceolin, Marcelo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
description The supramacromolecular structure of core–shell amphiphilic macromolecules (CAMs) with hyperbranched polyethyleneimine (HPEI) cores and fatty acid chain shells (HPEI-Cn) for different chain lengths was investigated both, in colloidal suspension, solid phase and at the air–water interface using Small Angle X-ray Scattering (SAXS), Wide Angle X-ray Scattering (WAXS), X-ray Reflectometry (XRR) and Langmuir isotherms. At low temperatures colloidal toluene suspensions of the HPEI-Cn polymers form, as evidenced by peaks arising in the structure factor of the system showing mean particle-to-particle distances correlated with the length of the aliphatic chains forming the shells of HPEI-Cn unimicelles. The CAM sizes as found from the SAXS experiments also display a clear dependence on shell thickness suggesting that the aliphatic chains adopt a brush-like configuration. After solvent extraction, HPEI-Cn adopts ordered structures with hexagonal packing of the aliphatic chains. Submitted to lateral pressure Π at the air–water interface, HPEI-Cn undergoes a disorder–order transition with increasing transition pressure for increasing chain lengths. The CAMs show different behaviors in-plane and out-of-plane. While out-of-plane the aliphatic chains behave as a brush remaining almost fully unfolded, whereas parallel to the air–water interface the chains fold down in a mushroom way with increasing lateral pressure Π.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
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/11336/32273
Ceolin, Marcelo Raul; Stühn, Bernd; Azzaroni, Omar; Appel, Cristian; Didzoleit, Haiko; Kraska, Martin; et al.; On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 436; 7-2014; 243-250
0021-9797
CONICET Digital
CONICET
url http://hdl.handle.net/11336/32273
identifier_str_mv Ceolin, Marcelo Raul; Stühn, Bernd; Azzaroni, Omar; Appel, Cristian; Didzoleit, Haiko; Kraska, Martin; et al.; On the supramacromolecular structure of core–shell amphiphilic macromolecules derived from hyperbranched polyethyleneimine; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 436; 7-2014; 243-250
0021-9797
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2014.06.034
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0021979714004536
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc Elsevier Science
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 12.976206

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