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Comparison of techniques for the determination of conversion during suspension polymerization reactions

SANTOS, J. C.; LOPES, C. N.; REIS, M. M.; GIUDICI, R.; SAYER, C.; MACHADO, R. A. F.; ARAÚJO, P. H. H. (Brazilian Society of Chemical Engineering, 2008)

The determination of conversion during suspension polymerization reactions is not an easy task due to the heterogeneity of the reaction medium and the tendency of particles to agglomerate rapidly when stirring is stopped. ...

Polymerization shrinkage of bulk fill composites and its correlation with bond strength

UFMA-Universidade Federal do Maranhão; Universidade Estadual Paulista (Unesp) (2018-05-01)

The present study aimed to evaluates polymerization shrinkage (PS) using microcomputed tomography (μCT) and microtensile bond strength (μTBS) in bulk fill composites (BFC) and conventional class I restorations as well as ...

Is there correlation between polymerization shrinkage, gap formation, and void in bulk fill composites? A μCT study

Universidade Estadual Paulista (Unesp) (2017-12-18)

This in vitro study aimed to evaluate the volume of polymerization shrinkage (VS), gap (VG), and void (VV) using computerized microtomography (μCT) in bulk fill resin composites and conventional class I restorations, and ...

Effect of in situ polymerization conditions of methyl methacrylate on the structural and morphological properties of poly(methyl methacrylate)/poly(acrylonitrile-g-(ethylene-co-propylene-co-diene)-g-styrene) PMMA/AES Blends

de Carvalho, FP; Goncalves, MD; Felisberti, MI (Wiley-blackwellMaldenEUA, 2012)

Polymerization of vinyl acetate in bulk and emulsion by gamma irradiation

MESQUITA, A.C.; MORI, M.N.; ANDRADE e SILVA, L.G. (2004)

Polymerization Shrinkage and Push-out Bond Strength of Different Composite Resins for Sealing the Screw-access Hole on Implant-supported Crowns

Universidade Estadual Paulista (Unesp); Universiteit van Amsterdam and Vrije Universiteit (2020-01-01)

Purpose: To evaluate the effect of composite resin polymerization shrinkage stress on the stress distribution in the implant-supported crown-access hole, and on the bond strength between the ceramic and composite resin. ...

Analyzing the Real Advantages of Bifunctional Initiator over Monofunctional Initiator in Free Radical Polymerization

Machado, PFDPB; Lona, LMF (John Wiley & Sons IncHobokenEUA, 2010)

Heterogeneous Bulk Polymerization of Styrene in the Presence of Polybutadiene. Calculation of the Macromolecular Structure

Casis, Natalia; Estenoz, Diana Alejandra; Gugliotta, Luis Marcelino; Oliva, Haydee; Meira, Gregorio Raul (John Wiley & Sons Inc, 2006-03)

A mathematical model is presented that simulates the polymerization of styrene in the presence of polybutadiene (PB) for producing high-impact polystyrene (HIPS) via the heterogeneous bulk process. The model follows the ...

Profundidad de fotopolimeración de diferenes resinas nano-híbridasBulk Fill

Erazo Espinosa, Pablo Andrés (Loja, 2019)

Effect of light-curing protocols on the mechanical behavior of bulk-fill resin composites

Universidade Estadual de Londrina (UEL); Universidade Estadual Paulista (Unesp) (2019-02-01)

Objective: To investigate the effect of two light-curing protocols on mechanical behavior of three bulk-fill resin composites (BFRC) considering their optical properties. Methods: One increment of 4 mm thickness of the ...

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