In optically clear adhesive synthesis, free radical initiators can be photoinitators or thermal initiators. The amount of the free radical initiator is often in a range of 0.05 to 5 weight percent based on a total weight of monomers used. The following are some examples of initiators including both thermal and photo-initiators:
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Photoinitiator
According to the radical generation mechanisms, radical photoinitiators can be divided into three categories:
Continue reading “Photoinitiator”Polymeric Photoinitiator
Polymeric photo initiators have at least two advantages: (1) low migration rate due to their long polymer chain compared with small molecular counterparts; (2) higher cross linking efficiency since only one step reaction is needed to form bridges between two polymer chains, while small molecular initiators need two steps.
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