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A new environmentally friendly photo-acid generator(PAG), 1-{4’-[4,6-bis(trichloromethyl)-1,3,5-triazin-2-yl][1,1’-biphenyl]-4-yl}-O-acetyloxime ethanone(TZ4) consisting of both an oxime ester group and a triazine group was designed and synthesized. From the measurements of absorption, fluorescence and the photo-acid generation, it was found that the novel PAG has an excellent radical-generating efficiency. And the other three bis-(trichloromethyl) triazine derivatives 2-[2-(4-methoxyphenyl)ethenyl]-4,6-bis(trichloromethyl)-1,3,5-triazine(TZ1), 2-[2-(3,4-dimeth-oxyphenyl)ethenyl]-4,6-bis(trichloromethyl)-1,3,5-triazine(TZ2) and 2-(1,3-benzodioxol-5-yl)-4,6-bis(trichloromethyl)-1,3,5-triazine(TZ3) were synthesized and studied in this work. In the acid measurement, the acid-forming performance of S-triazinyl derivatives was evaluated by the method ascertained in our laboratory. The results indicate that the novel triazine has the better acid-forming performance that subsequently catalyzes the deblocking of a protecting group in copolymers.
A new environmentally friendly photo-acid generator (PAG) 1- {4’- [4,6-bis (trichloromethyl) -1,3,5-triazin- -yl} -O-acetyloxime ethanone (TZ4) consisting of both an oxime ester group and a triazine group was designed and synthesized. From the measurements of absorption, fluorescence and the photo-acid generation, it was found that the the novel PAG has an excellent radical-generating efficiency. And the other three bis- (trichloromethyl) triazine derivatives 2- [4- (4-methoxyphenyl) ethenyl] 2- (3,4-dimethoxyphenyl) ethenyl] -4,6-bis (trichloromethyl) -1,3,5-triazine (TZ2) and 2- (1,3-benzodioxol- -4,6-bis (trichloromethyl) -1,3,5-triazine (TZ3) were synthesized and studied in this work. In the acid measurement, the acid-forming performance of S-triazinyl derivatives was evaluated by the method ascertained in our laboratory. The results indicating that the novel triazine has the better acid-forming performance that subsequent catalyze s the deblocking of a protecting group in copolymers.