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通过Suzuki偶合反应合成出了主链中含有非共轭烷氧基组分(-O-CH2-CH2-CH2-CH2-O-)的聚芴类衍生物聚-2,7-(9,9-二辛基芴)-co-4,4’-丁氧基二苯(PFP)和聚-2,7-(9,9-二辛基芴)-co-4,4’-丁氧基二苯-co-N-苯基-4,4’-二苯胺(PFTP11)并通过相同的条件合成出主链由芴和三苯胺交替相连的聚合物聚-2,7-(9,9-二辛基芴)-co-N-苯基-4,4’-二苯胺(PFTPA)作为参比材料.通过1HNMR和FT-IR分析对这些聚合物的化学结构进行了表征.这三种聚合物在常用的有机溶剂中具有很好的溶解性,可通过溶液加工的方式制备聚合物薄膜.这些聚合物均具有较高的热分解温度(>400℃),聚合物PFP具有较高的玻璃化转变温度(～130℃)而PFTP11和PFTPA则未出现明显的玻璃化转变过程.通过对聚合物的吸收特性进行测试得知它们具有较大的光学带宽(2.89～3.29eV).所有聚合物在固体薄膜状态下均发射出蓝色荧光,PFP,PFTP11和PFTPA的最大PL发射分别位于425,437和440nm.通过对其电化学性能进行测试可知由于三苯胺基团的引入聚合物的HOMO能级明显提高,这意味着聚合物的空穴传输能力得到了有效的改善.
The polyfluorene derivatives poly-2,7- (9,9, 9, 9, 9) with non-conjugated alkoxy component in the main chain (-O-CH2-CH2-CH2-CH2-O-) were synthesized by Suzuki coupling reaction -dioctylfluorene) -co-4,4’-butoxybiphenyl (PFP) and poly-2,7- (9,9-dioctylfluorene) -co-4,4’-butoxy Diphenyl-co-N-phenyl-4,4’-diphenylamine (PFTP11) was synthesized under the same conditions and the polymer poly-2,7- (9,9- Dioctylfluorene) -co-N-phenyl-4,4’-diphenylamine (PFTPA) as a reference material.The chemical structures of these polymers were characterized by 1H NMR and FT-IR analysis.These three polymerizations The polymers have good solubility in common organic solvents and can be prepared by solution processing of polymer films.These polymers have a higher thermal decomposition temperature (> 400 ℃), the polymer PFP has a higher glass (~ 130 ℃) and PFTP11 and PFTPA did not show any significant glass transition.It was found that all the polymers had a large optical bandwidth (2.89 ~ 3.29eV) by testing the absorption characteristics of the polymers In the state of the solid thin film emits blue fluorescence, the maximum PL emission of PFP, PFTP11 and PFTPA respectively Located at 425, 437 and 440 nm, shows that the HOMO energy level of the polymer introduced by the triphenylamine group is significantly improved by testing its electrochemical performance, which implies that the hole transport capability of the polymer is effectively improved.