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dc.contributor.author
Fernández, Raquel  
dc.contributor.author
Blanco, Miren  
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Galante, Maria Jose  
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Oyanguren, Patricia Angelica  
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Mondragon, Iñaki  
dc.date.available
2018-12-10T20:02:17Z  
dc.date.issued
2009-06  
dc.identifier.citation
Fernández, Raquel; Blanco, Miren; Galante, Maria Jose; Oyanguren, Patricia Angelica; Mondragon, Iñaki; Polymerization of an epoxy resin modified with azobenzene groups monitored by near-infrared spectroscopy; John Wiley & Sons Inc; Journal of Applied Polymer Science; 112; 5; 6-2009; 2999-3006  
dc.identifier.issn
0021-8995  
dc.identifier.uri
http://hdl.handle.net/11336/66220  
dc.description.abstract
New photosensitive materials containing photochromic azobenzene moieties were synthesized. For this purpose, an epoxy resin based on diglycidyl ether of bisphenol A (DGEBA) was reacted with an azobenzene chromophore (disperse orange 3, AZ) to satisfactorily synthesize an azo‐modified prepolymer, which was then used to generate series of epoxy‐based polymers containing azo groups. Three different amines were used as hardeners, with the aim of obtaining materials with different chemical structures. Understanding the epoxy resin polymerization kinetics is essential for intelligent processing of materials. Near‐IR (NIR) spectral analysis was used to follow the polymerization kinetics. The quality of the NIR spectra enables concentrations of individual chemical species to be measured in real time. Conversion of epoxy and primary amine groups, as well as the concentration of different groups, as a function of reaction time was therefore calculated by this spectroscopic technique. Samples containing azo units were compared to the pure DGEBA/amine systems. Results showed that the azo‐prepolymer incorporation has an accelerating effect on polymerization rate.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
John Wiley & Sons Inc  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Azobenzene Chromophore  
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Epoxy  
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Kinetics  
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Near-Infrared Spectroscopy  
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Otras Ingeniería Química  
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Ingeniería Química  
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INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Polymerization of an epoxy resin modified with azobenzene groups monitored by near-infrared spectroscopy  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-12-05T14:37:21Z  
dc.journal.volume
112  
dc.journal.number
5  
dc.journal.pagination
2999-3006  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Nueva York  
dc.description.fil
Fil: Fernández, Raquel. Universidad del País Vasco; España  
dc.description.fil
Fil: Blanco, Miren. Universidad del País Vasco; España  
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Fil: Galante, Maria Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina  
dc.description.fil
Fil: Oyanguren, Patricia Angelica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina  
dc.description.fil
Fil: Mondragon, Iñaki. Universidad del País Vasco; España  
dc.journal.title
Journal of Applied Polymer Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1002/app.29905  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/app.29905