| Full text | |
| Author(s): |
Rafael Turra Alarcon
;
Bruno Barreto da Cunha Holanda
;
Daniel Rinaldo
;
Flávio Junior Caires
;
Marcos Vinícius de Almeida
;
Gilbert Bannach
Total Authors: 6
|
| Document type: | Journal article |
| Source: | Química Nova; v. 40, n. 4, p. 363-370, Maio 2017. |
| Web of Science Citations: | 3 |
| Abstract | |
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 used to calculate the monomers' degree of conversion (%DC); as well as simultaneous Thermogravimetric Analysis – Differential Thermal Analysis (TGA-DTA) and Differential Scanning Calorimetry (DSC) were conducted to evaluate thermal stability, degradation steps, and thermal events. The use of different initiator systems did not modify the thermal events or the thermal stability of each of the dimethacrylate resins. Results show a substitution of system 2 (toxicity) by system 3 (low toxicity), which had a good conversion velocity and total conversion in some monomers, is plausible. (AU) | |
| FAPESP's process: | 12/21450-1 - Thermoanalytical studies, synthesis and characterization of the solid co-crystals of ketoprofen with some co-formers |
| Grantee: | Gilbert Bannach |
| Support type: | Regular Research Grants |
| FAPESP's process: | 13/09022-7 - Thermoanalytical studies, synthesis and characterization of the solid co-crystals of antibiotics (fluoroquinolones) with some co-formers |
| Grantee: | Massao Ionashiro |
| Support type: | Regular Research Grants |