Understanding the Microstructure Connectivity in Photopolymerizable Aluminum-Phosphate-Silicate Sol-Gel Hybrid Materials for Additive Manufacturing
dc.contributor.author | Tayama, Gabriel Toshiaki [UNESP] | |
dc.contributor.author | Santagneli, Silvia Helena [UNESP] | |
dc.contributor.author | de Oliveira Junior, Marcos | |
dc.contributor.author | Messaddeq, Younes [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | |
dc.contributor.institution | Photonique et Laser─COPL─Universite Laval | |
dc.contributor.institution | Universidade de São Paulo (USP) | |
dc.date.accessioned | 2023-07-29T16:04:51Z | |
dc.date.available | 2023-07-29T16:04:51Z | |
dc.date.issued | 2023-02-09 | |
dc.description.abstract | In this paper, we report the synthesis and structural characterization of transparent and photopolymerizable aluminum-phosphate-silicate hybrid materials obtained via the sol-gel route, with different aluminum/phosphate (Al/P) ratios. We explored the system Si(1-x)-(Al/P) (x) with x varying from 0.3 to 1, and atomic ratios of Al/P are 1:3, 1:1, and 3:1. All compositions contain high inorganic mass content (up to 40 wt %). Furthermore, they are compatible with vat-photopolymerization platforms. The structural evolution of the hybrid materials with the silicon concentration was investigated by SEM, phase-contrast AFM, and solid-state NMR techniques, using single- and double-resonance experiments. The structure follows the build-up principle using aluminum-phosphate species and alkoxysilane chains as fundamental building blocks. These aluminum-phosphate species were identified as monomeric and dimeric chain structures by comparing different parameters obtained from NMR data to compound models. Monomeric and dimeric aluminum-phosphate chain structures were predominant in 3:1 and 1:3 Al/P ratio samples, respectively, promoting and hindering the heterocondensation with the alkoxysilane precursor, respectively. The photopolymerization mechanism leads to the percolation of the inorganic networks through a parallel polymethylmethacrylate network, resulting in a material with structural heterogeneities in the range of 5 nm, evidenced by phase-contrast AFM. | en |
dc.description.affiliation | Chemistry Institute São Paulo State University─UNESP, Rua Francisco Degni 55, Araraquara | |
dc.description.affiliation | Centre de Optique Photonique et Laser─COPL─Universite Laval, 2375 rue de la Terrase | |
dc.description.affiliation | São Carlos Institute of Physics University of São Paulo, São Carlos | |
dc.description.affiliationUnesp | Chemistry Institute São Paulo State University─UNESP, Rua Francisco Degni 55, Araraquara | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description.sponsorship | Natural Sciences and Engineering Research Council of Canada | |
dc.description.sponsorship | The Research Council | |
dc.format.extent | 2416-2429 | |
dc.identifier | http://dx.doi.org/10.1021/acs.jpcc.2c08027 | |
dc.identifier.citation | Journal of Physical Chemistry C, v. 127, n. 5, p. 2416-2429, 2023. | |
dc.identifier.doi | 10.1021/acs.jpcc.2c08027 | |
dc.identifier.issn | 1932-7455 | |
dc.identifier.issn | 1932-7447 | |
dc.identifier.scopus | 2-s2.0-85147262232 | |
dc.identifier.uri | http://hdl.handle.net/11449/249627 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Physical Chemistry C | |
dc.source | Scopus | |
dc.title | Understanding the Microstructure Connectivity in Photopolymerizable Aluminum-Phosphate-Silicate Sol-Gel Hybrid Materials for Additive Manufacturing | en |
dc.type | Artigo | |
unesp.author.orcid | 0000-0002-4710-0442 0000-0002-4710-0442[1] | |
unesp.author.orcid | 0000-0001-6538-2204[3] | |
unesp.author.orcid | 0000-0002-0868-2726 0000-0002-0868-2726[4] |