Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates
- Autores
- Peruzzo, Pablo José; Anbinder, Pablo Sebastián; Pardini, Oscar Ricardo; Vega, Jorge R.; Amalvy, Javier Ignacio
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Polyurethane (PU)-acrylic hybrid composites were prepared by emulsion polymerization of acrylic monomers in the presence of preformed PU chains containing polymerizable terminal vinyl groups. To study the effect of the nature of diisocyanate on the film's morphology and properties, composites were prepared from two different diisocyanates: tetramethylxylene diisocyanate and 4,4′-dicyclohexylmethane diisocyanate. The samples were then characterized using size exclusion chromatography, dynamic light scattering, transmission electron microscopy, Fourier-transformed infrared spectroscopy (FTIR) and small-angle X-ray scattering (SAXS), and the gel fraction content and mechanical properties of the films were also determined. The hybrid composites were found to be cross-linked systems that underwent changes in their particle and film morphologies with increasing acrylic content. The FTIR results revealed a good interaction between the PU and acrylic moieties, and SAXS experiments showed that systems with up to a 50 wt% acrylic component were homogeneous. An attempt to incorporate a higher amount of acrylic component resulted in phase-separated materials. The composition at which phase separation was observed was found to be strongly dependent on the diisocyanate structure. Although the properties of hybrid samples with lower acrylic contents were dependent on the diisocyanate used, samples with higher acrylic contents behaved similarly to those of pure acrylic regardless of the diisocyanate used for preparation.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ingeniería - Materia
-
Ingeniería
Ciencias Exactas
core-shell polymers
microphase separation
polyurethane-acrylic
waterborne dispersions - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/83982
Ver los metadatos del registro completo
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Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylatesPeruzzo, Pablo JoséAnbinder, Pablo SebastiánPardini, Oscar RicardoVega, Jorge R.Amalvy, Javier IgnacioIngenieríaCiencias Exactascore-shell polymersmicrophase separationpolyurethane-acrylicwaterborne dispersionsPolyurethane (PU)-acrylic hybrid composites were prepared by emulsion polymerization of acrylic monomers in the presence of preformed PU chains containing polymerizable terminal vinyl groups. To study the effect of the nature of diisocyanate on the film's morphology and properties, composites were prepared from two different diisocyanates: tetramethylxylene diisocyanate and 4,4′-dicyclohexylmethane diisocyanate. The samples were then characterized using size exclusion chromatography, dynamic light scattering, transmission electron microscopy, Fourier-transformed infrared spectroscopy (FTIR) and small-angle X-ray scattering (SAXS), and the gel fraction content and mechanical properties of the films were also determined. The hybrid composites were found to be cross-linked systems that underwent changes in their particle and film morphologies with increasing acrylic content. The FTIR results revealed a good interaction between the PU and acrylic moieties, and SAXS experiments showed that systems with up to a 50 wt% acrylic component were homogeneous. An attempt to incorporate a higher amount of acrylic component resulted in phase-separated materials. The composition at which phase separation was observed was found to be strongly dependent on the diisocyanate structure. Although the properties of hybrid samples with lower acrylic contents were dependent on the diisocyanate used, samples with higher acrylic contents behaved similarly to those of pure acrylic regardless of the diisocyanate used for preparation.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasFacultad de Ingeniería2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf232-239http://sedici.unlp.edu.ar/handle/10915/83982enginfo:eu-repo/semantics/altIdentifier/issn/0032-3896info:eu-repo/semantics/altIdentifier/doi/10.1038/pj.2011.111info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:05Zoai:sedici.unlp.edu.ar:10915/83982Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:05.463SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates |
title |
Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates |
spellingShingle |
Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates Peruzzo, Pablo José Ingeniería Ciencias Exactas core-shell polymers microphase separation polyurethane-acrylic waterborne dispersions |
title_short |
Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates |
title_full |
Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates |
title_fullStr |
Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates |
title_full_unstemmed |
Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates |
title_sort |
Influence of diisocyanate structure on the morphology and properties of waterborne polyurethane-acrylates |
dc.creator.none.fl_str_mv |
Peruzzo, Pablo José Anbinder, Pablo Sebastián Pardini, Oscar Ricardo Vega, Jorge R. Amalvy, Javier Ignacio |
author |
Peruzzo, Pablo José |
author_facet |
Peruzzo, Pablo José Anbinder, Pablo Sebastián Pardini, Oscar Ricardo Vega, Jorge R. Amalvy, Javier Ignacio |
author_role |
author |
author2 |
Anbinder, Pablo Sebastián Pardini, Oscar Ricardo Vega, Jorge R. Amalvy, Javier Ignacio |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Ingeniería Ciencias Exactas core-shell polymers microphase separation polyurethane-acrylic waterborne dispersions |
topic |
Ingeniería Ciencias Exactas core-shell polymers microphase separation polyurethane-acrylic waterborne dispersions |
dc.description.none.fl_txt_mv |
Polyurethane (PU)-acrylic hybrid composites were prepared by emulsion polymerization of acrylic monomers in the presence of preformed PU chains containing polymerizable terminal vinyl groups. To study the effect of the nature of diisocyanate on the film's morphology and properties, composites were prepared from two different diisocyanates: tetramethylxylene diisocyanate and 4,4′-dicyclohexylmethane diisocyanate. The samples were then characterized using size exclusion chromatography, dynamic light scattering, transmission electron microscopy, Fourier-transformed infrared spectroscopy (FTIR) and small-angle X-ray scattering (SAXS), and the gel fraction content and mechanical properties of the films were also determined. The hybrid composites were found to be cross-linked systems that underwent changes in their particle and film morphologies with increasing acrylic content. The FTIR results revealed a good interaction between the PU and acrylic moieties, and SAXS experiments showed that systems with up to a 50 wt% acrylic component were homogeneous. An attempt to incorporate a higher amount of acrylic component resulted in phase-separated materials. The composition at which phase separation was observed was found to be strongly dependent on the diisocyanate structure. Although the properties of hybrid samples with lower acrylic contents were dependent on the diisocyanate used, samples with higher acrylic contents behaved similarly to those of pure acrylic regardless of the diisocyanate used for preparation. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Facultad de Ingeniería |
description |
Polyurethane (PU)-acrylic hybrid composites were prepared by emulsion polymerization of acrylic monomers in the presence of preformed PU chains containing polymerizable terminal vinyl groups. To study the effect of the nature of diisocyanate on the film's morphology and properties, composites were prepared from two different diisocyanates: tetramethylxylene diisocyanate and 4,4′-dicyclohexylmethane diisocyanate. The samples were then characterized using size exclusion chromatography, dynamic light scattering, transmission electron microscopy, Fourier-transformed infrared spectroscopy (FTIR) and small-angle X-ray scattering (SAXS), and the gel fraction content and mechanical properties of the films were also determined. The hybrid composites were found to be cross-linked systems that underwent changes in their particle and film morphologies with increasing acrylic content. The FTIR results revealed a good interaction between the PU and acrylic moieties, and SAXS experiments showed that systems with up to a 50 wt% acrylic component were homogeneous. An attempt to incorporate a higher amount of acrylic component resulted in phase-separated materials. The composition at which phase separation was observed was found to be strongly dependent on the diisocyanate structure. Although the properties of hybrid samples with lower acrylic contents were dependent on the diisocyanate used, samples with higher acrylic contents behaved similarly to those of pure acrylic regardless of the diisocyanate used for preparation. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/83982 |
url |
http://sedici.unlp.edu.ar/handle/10915/83982 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0032-3896 info:eu-repo/semantics/altIdentifier/doi/10.1038/pj.2011.111 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf 232-239 |
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