Kinetic study of the photopolymerization of a bisphenol-A-bis(glycidylmethacrylate)/triethyleneglycol dimethacrylate system in hydroxyapatite-filled composites
✍ Scribed by Alvarez, M; Davidenko, N; García, R; Alonso, A; Rodríguez, R; Guerra, R M; Sastre, R
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 93 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0959-8103
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✦ Synopsis
Photocurable composites based on hydroxyapatite and quartz as ®llers and a monomeric mixture of bisphenol-A±bis(glycidylmethacrylate)/triethyleneglycol dimethacrylate (40/60 wt%) as a matrix were prepared. Both ®llers were also treated with 3-trimethoxysilylpropyl methacrylate, and the effectiveness of the silane treatment was veri®ed by FTIR spectroscopy.
The kinetic study of the photopolymerization of the different composites was carried out at maximum ®ller content, and at variable and constant ®ller contents. The differences found in the kinetic behaviour of the composites are explained using the three-layer model for particulate composites (TLMPC) and the optical phenomenon that takes place by direct interaction of the irradiation light with the ®ller particles.