Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins

Full text
Author(s):
Neumann, Miguel G. [1] ; Schmitt, Carla C. [1] ; Correa, Ivo C. [2] ; Goi, Beatriz E. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Fed Rio de Janeiro, Fac Odontol, Rio De Janeiro - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 19, n. 7, p. 1413-1417, 2008.
Web of Science Citations: 5
Abstract

A study was performed in order to determine the efficiency of the simultaneous use of the photoinitiators phenylpropanedione (PPD) and camphorquinone (CQ) in the polymerization of acrylic polymers and evaluate possible mechanisms leading to synergism or antagonism. It was found that efficiencies of both initiators taken individually are higher than that of their mixture, indicating that when both dyes are used simultaneously there will be an energy transfer from the more efficient initiator (CQ) to the less efficient one (PPD). Also, there was no proof of any reaction between the amine present in the CQ formulation and the PPD excited state. (AU)

FAPESP's process: 03/07770-4 - Interactions of visible light with polymers: photopolymerization and photodegradation
Grantee:MIGUEL GUILLERMO NEUMANN
Support Opportunities: Research Projects - Thematic Grants