Functional group conversions of the BisGMA/TEGDMA (50%/50% w/w) composition polymerizing according to the photo-oxidising or photo-reducing mechanisms, when exposed to light of different wavelengths.
Conversion [%] | |||||
---|---|---|---|---|---|
Photo-oxidation mechanism | Photo-reduction mechanism | ||||
Acronym | BisGMA/TEGDMA (50%/50% w/w) with diphenyliodonium salt (1 wt%) | Acronym | BisGMA/TEGDMA (50%/50% w/w) with EDB (1.5 wt%) | ||
@ 365a nm | @ 405b nm | @ 365a nm | @ 405b nm | ||
BI-PH | 75.0 | 83.8 | BI-PH | 75.6 | 64.1 |
BI-PH-O-CH3 | 78.8 | 82.1 | BI-PH-SO2-CH3 | 58.8 | 69.8 |
BI-PH-S-CH3 | 78.5 | 83.6 | BI-PH-CN | 60.2 | 65.3 |
LED @ 365 nm ∼ 3.77 mW cm−2.
LED @ 405 nm ∼ 8.13 mW cm−2.