Reactions
All photoinitiators have bonds that cleave via photolysis. For example, peroxides like hydrogen peroxide are perfect examples, with the O-O bond cleaving to form two hydroxyl radicals.
- H2O2 → 2 ·OH
Certain azo compounds (such as azobisisobutyronitrile), can also photolytically cleave, forming two alkyl radicals and nitrogen gas:
- RCH2-N=N-H2CR → 2 RCH2 + N2
These free radicals can now promote other reactions.
Read more about this topic: Photoinitiator
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