Buscar
Mostrando ítems 1-10 de 2457
Degree of conversion and hardness of two different systems of the vitrebond™ glass ionomer cement light cured with blue LED
(2013-09-03)
This study investigated the physicochemical properties of the new formulation of the glass ionomer cements through hardness test and degree of conversion by infrared spectroscopy (FTIR). Forty specimens (n = 40) were made ...
Degree of conversion and hardness of two different systems of the vitrebond™ glass ionomer cement light cured with blue LED
(2013-09-03)
This study investigated the physicochemical properties of the new formulation of the glass ionomer cements through hardness test and degree of conversion by infrared spectroscopy (FTIR). Forty specimens (n = 40) were made ...
SYNTHESIS, THERMAL STUDIES AND CONVERSION DEGREE OF DIMETHACRYLATE POLYMERS USING NEW NON-TOXIC COINITIATORS
(Soc Brasileira Quimica, 2017-05-01)
The aim of this paper is to replace toxic coinitiators (tertiary amines) by non-toxic compounds such as glycerol and inositol (polyalcohol) in dimethacrylate resins. For this purpose, mid infrared spectroscopy (MIR) was ...
Infrared spectroscopy: a tool for determination of the degree of conversion in dental composites
(Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru, 2008-03-01)
Infrared spectroscopy is one of the most widely used techniques for measurement of conversion degree in dental composites. However, to obtain good quality spectra and quantitative analysis from spectral data, appropriate ...
Infrared spectroscopy: a tool for determination of the degree of conversion in dental composites
(Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru, 2008-03-01)
Infrared spectroscopy is one of the most widely used techniques for measurement of conversion degree in dental composites. However, to obtain good quality spectra and quantitative analysis from spectral data, appropriate ...
Is Thermogravimetry an efficient alternative to gas chromatography in degree of biodiesel conversion?
(2018-05-17)
This work aims to determine if thermogravimetry could be used to determine the degree of conversion of soybean oil to biodiesel without knowing the amount of ester in the sample, comparing the results with the values ...
Infrared spectroscopy: A tool for determination of the degree of conversion in dental composites
(2008-01-01)
Infrared spectroscopy is one of the most widely used techniques for measurement of conversion degree in dental composites. However, to obtain good quality spectra and quantitative analysis from spectral data, appropriate ...
Use of DSC in degree of conversion of dimethacrylate polymers: easier and faster than MIR technique
(2018-05-01)
This work aims to determine the degree of conversion of polymers obtained using diurethane dimethacrylate (UDMA) monomer by two different techniques: differential scanning calorimetry (DSC) and Fourier transform infrared ...
Bond strengths, degree of conversion of the cement and molecular structure of the adhesive-dentine joint in fibre post restorations
(Elsevier B.V., 2012-04-01)
Objectives: Because fibre post restorations are influenced by multiple factors such as the types of bonding materials, the dentine region and the time under moist exposure, this study sought to determine the bond strength ...
Dimethacrylate polymers with different glycerol content: Thermal study, degree of conversion, and morphological features
(2018-06-01)
The objectives of this study were to verify thermal properties, degree of conversion, and morphological features of several dimethacrylate polymers with different glycerol content and obtain the better proportion system ...