The present invention relates to a photoinitiator composition that can be used to initiate polymerization upon exposure to radiation. The said composition includes both a composition which yields cations upon exposure to actinic radiation, such as an iodonium borate initiator and a stabilizing amino agent. The amino agent is a secondary or tertiary amine having general formula (VIII), a sterically arranged cyclic amine having general formula (IX), or an amine consisting of groups that have general formulas (VIII) and (IX) and that are interconnected. The compositions are particularly useful when used in conjunction with polyorganosiloxane monomers and when exposed to ultraviolet radiation.
本发明涉及一种光
引发剂组合物,可用于在暴露于辐射时引发聚合反应。所述组合物包括在暴露于辐射时产生阳离子的组合物(如
硼酸碘鎓
引发剂)和稳定
氨基剂。
氨基剂是具有通式(VIII)的仲胺或叔胺、具有通式(IX)的立体排列的环胺或由具有通式(VIII)和(IX)且相互连接的基团组成的胺。当这些组合物与聚有机
硅氧烷单体一起使用并暴露在紫外线辐射下时尤其有用。