Triphenyl sulfonium triflate

Selected florinated norbomane copolymers were dissolved in propylene glycol methyl acetate to form 14 wt% solutions and then treated with two weight parts of triphenyl-sulfonium triflate as the acid generator. These solutions were then spin coated and light transmittance measured using a 100-nm-thick him at 157 nm. Testing results are summarized in Table 2. 

A typical acid photogenerator is triphenyl sulfonium triflate (Figure 6.13), which generates trifluoromethane sulfonic acid. Onium salt photoinitiators of this type can induce cationic photopolymerisation under photoirradiation. The reaction is complex and several products of this type are used with Lewis acids, such as AsPF ", AsF " and BF4". See, for example, [44]. 

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See also in sourсe #XX -- [ ]

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