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dc.contributor.author
Forchetti Casarino, Agustin
dc.contributor.author
Bortolato, Santiago Andres
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Estenoz, Diana Alejandra
dc.contributor.author
Spontón, Marisa Elisabet
dc.date.available
2021-07-26T13:55:06Z
dc.date.issued
2021-06
dc.identifier.citation
Forchetti Casarino, Agustin; Bortolato, Santiago Andres; Estenoz, Diana Alejandra; Spontón, Marisa Elisabet; Tuning morphology of siloxane bond-based polybenzoxazines by controlling the sol–gel and curing processes; John Wiley & Sons Inc; Polymer Engineering and Science; 61; 6; 6-2021; 1611-1623
dc.identifier.issn
0032-3888
dc.identifier.uri
http://hdl.handle.net/11336/136909
dc.description.abstract
Novel polybenzoxazine/polysilsesquioxane nanocomposites were synthesized with uniform and reproducible structural morphology, high Tg, and good thermal stability. Polysilsesquioxane was oriented in a nanometer-size lamellar structure. Benzoxazine monomer based on silane (BA-3aptms) was synthesized by reaction between bisphenol A, 3-(trimethoxysilyl)propylamine, and paraformaldehyde in a 1:2:4 molar ratio. Four experimental conditions of the two stage sol–gel process for polysilsesquioxane were studied, and their effect on the material characteristics investigated. In the first stage, hydrolysis was favored, while the second stage mostly consisted of condensation. The reaction condition with the longest hydrolysis time allowed the increase of the concentration of silanol units and the selective condensation, favoring the formation of a higher amount of cage-like cyclic structures. In addition, this experimental procedure was well controlled so that the sol–gel and oxazine-ring opening reactions were extremely reproducible from batch to batch. All processes were monitored by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis and dynamic mechanical thermal analysis, scanning electron and transmission electron microscopies, and X-ray diffraction. A chemometric approach based on a multivariate curve resolution model was applied to the FTIR spectra, which allowed the identification of four reaction components associated with the sol–gel and the curing processes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Inc
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MORPHOLOGY
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POLYBENZOXAZINES
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SOL–GEL PROCESS
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Ingeniería de los Materiales
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Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Tuning morphology of siloxane bond-based polybenzoxazines by controlling the sol–gel and curing processes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-07-01T17:32:22Z
dc.journal.volume
61
dc.journal.number
6
dc.journal.pagination
1611-1623
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Forchetti Casarino, Agustin. 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
dc.description.fil
Fil: Bortolato, Santiago Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Química Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario; Argentina
dc.description.fil
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
dc.description.fil
Fil: Spontón, Marisa Elisabet. 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
dc.journal.title
Polymer Engineering and Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/pen.25684
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1002/pen.25684
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