三嗪类光生酸剂的合成及性能表征

Studies on Synthesis of Triazine Derivatives and Their Properties as Photo-acid Generator

以2-甲基-4,6-双(三氯甲基)-1,3,5-三嗪为原料,与取代的芳香醛类化合物经过缩合反应制备了四种三嗪类光生酸剂,其结构经1HNMRI、R等分析确认,同时对其基本物性、紫外吸收性能及在405、365nm光源下的光分解及产酸性能进行了研究。结果表明,四种三嗪类光生酸剂都有较高的热稳定性和在常用有机溶剂中有较好的溶解性。在405nm光源曝光下2-(9-蒽乙烯基)-4,6-双(三氯甲基)-1,3,5-三嗪(PAG4)的分解和产酸量子产率达到分别为10%和9%,为四者中最高;2-(4-羟基苯乙烯基)-4,6-双(三氯甲基)-1,3,5-三嗪(PAG2)几乎不分解也不产酸。在365nm光源下四种光生酸剂的分解及产酸量子产率均很低。

4 kinds of triazine derivatives as photo-acid generator were synthesized by the reactions of 2 - methyl - 4,6 - bis （trichloromethyl）- 1,3,5 - triazine and substituted aromatic aldehydes. Their structures were confirmed by I HNMR and IR. Some physical performances, such as m. p. , UV-vis and solubility, have also been measured. Further, their photo-decomposition and acid-forming performance in acetonitrile under irradiation at 405 and 365nm were evaluated by the method ascertained in our laboratory. It is found that these compounds have high thermo-decomposi- tion temperature and good solubility in organic solvents. Under exposure by 405nm quantum yield of decomposition and acid forming of 2 -（2 -（anthracen- 9 - yl）vinyl）- 4,6 -bis （trichloromethyl） - 1,3, 5 - triazine （PAG4） was the highest in the four compounds, up to 10% and 9 %respectively. 2 -（4 - hydroxystyryl）- 4,6 - bis（trichloromethyl）- 1,3,5 -triazine （PAG2） is the lowest in both decomposition and acid-forming. But under exposure by 365nm, these four compounds have very poor performance as photo-acid generator.