The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins
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.
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Sociedade Brasileira de Química
2008
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oai:scielo:S0103-505320080007000272017-05-05The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resinsNeumann,Miguel G.Schmitt,Carla C.Correa,Ivo C.Goi,Beatriz E. photoinitiators photopolymerization mixed initiator systems synergy 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.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society v.19 n.7 20082008-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000700027en10.1590/S0103-50532008000700027 |
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| author |
Neumann,Miguel G. Schmitt,Carla C. Correa,Ivo C. Goi,Beatriz E. |
| spellingShingle |
Neumann,Miguel G. Schmitt,Carla C. Correa,Ivo C. Goi,Beatriz E. The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins |
| author_facet |
Neumann,Miguel G. Schmitt,Carla C. Correa,Ivo C. Goi,Beatriz E. |
| author_sort |
Neumann,Miguel G. |
| title |
The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins |
| title_short |
The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins |
| title_full |
The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins |
| title_fullStr |
The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins |
| title_full_unstemmed |
The effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins |
| title_sort |
effect of using mixed initiator systems on the efficiency of photopolymerization of dental resins |
| description |
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. |
| publisher |
Sociedade Brasileira de Química |
| publishDate |
2008 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000700027 |
| work_keys_str_mv |
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