Correlation between Critical Energy, Penetration Depth, and Photopolymerization Kinetics in Aluminum-Phosphate-Silicate Hybrid Materials for Vat Photopolymerization

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Autor(es): dc.contributorLaval University-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorTayama, Gabriel Toshiaki-
Autor(es): dc.creatorMessaddeq, Sandra Helena-
Autor(es): dc.creatorSantagneli, Silvia Helena-
Autor(es): dc.creatorMessaddeq, Younes-
Data de aceite: dc.date.accessioned2025-08-21T16:24:42Z-
Data de disponibilização: dc.date.available2025-08-21T16:24:42Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-06-13-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1021/acs.macromol.3c00363-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/303918-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/303918-
Descrição: dc.descriptionThe photopolymerization of aluminum-phosphate-silicate resins obtained from the hybrid sol-gel route for Vat photopolymerization (VPP) process was investigated. The printing parameters derived from Jacob’s work curve model, critical energy (Ec) and penetration depth (Dp), were determined as a function of laser power and MPTMS (silicate) concentration for materials with stoichiometry Si(x)-(Al + P)(1-x), 0 ≤ x ≤ 0.7. The kinetics of photopolymerization was further explored using steady- and unsteady-state photo-DSC experiments. The oxygen inhibition and primary termination had similar contributions to the polymerization process for all compositions, while the propagation and bimolecular termination constants increased with MPTMS concentration. These experimental results were used to test the validity of the Ec ∝ kt1/2/kp and Dp ∝ ϵ relationship derived from a photochemical model for VPP assuming steady-state kinetics. Both Ec ∝ (kt1/2/kp) and Dp ∝ ϵ may be used to predict critical energy and penetration values for an arbitrary resin without calculating its work curve function, according to our study.-
Descrição: dc.descriptionCenter for Optics Photonics and Lasers Laval University, 2375 de la Terrasse-
Descrição: dc.descriptionChemistry Institute of Araraquara Sao Paulo State University (UNESP), 55 Av. Prof. Francisco Degni, Sao Paulo-
Descrição: dc.descriptionChemistry Institute of Araraquara Sao Paulo State University (UNESP), 55 Av. Prof. Francisco Degni, Sao Paulo-
Formato: dc.format3891-3903-
Idioma: dc.languageen-
Relação: dc.relationMacromolecules-
???dc.source???: dc.sourceScopus-
Título: dc.titleCorrelation between Critical Energy, Penetration Depth, and Photopolymerization Kinetics in Aluminum-Phosphate-Silicate Hybrid Materials for Vat Photopolymerization-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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