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设计并合成了一系列含手性和发光生色团侧基的聚(1-苯基-1-辛炔)衍生物{-[(C6H13)C=C(C6H4-p-CO2-R)]n-,R=[(1S)-endo]-(-)-冰片基(P3),(1R,2S,5R)-(-)-薄荷基(P4),-C6H4-p-(1R,2S,5R)-(-)-薄荷基(P5),2-萘基(P6),4-联苯基(P7)}.用WCl6-Ph4Sn作催化剂,成功地制备了这些具有中等产率和高分子量(Mw高达64000)的聚合物.聚合物的结构和性能通过NMR,TGA,UV,CD,PL和EL等分析方法进行了表征.所有聚合物都表现出良好的热稳定性,在N2保护条件下,其失重5%的温度在300～416℃之间.所有聚合物的带隙约为3.0eV.聚合物P4和P5表现出与聚合物链段螺旋性相对应的CD吸收.在UV辐照下,P3～P7的THF溶液均发射强烈蓝光,其最大发射波长位于485nm左右,量子效率均高于20%.聚合物薄膜发射与其溶液发射在相同的光谱区域,并表现出轻微的聚集诱导猝灭.制备了ITO/聚合物:PVK/BCP/Alq3/LiF/Al多层聚合物EL器件,其最大发射波长为487nm.随着侧基的改变,器件的最大亮度和外量子效率也随之发生变化,其中P6表现出最高的外量子效率(0.16%).EL器件均具有良好的光谱稳定性,其EL最大发射峰几乎不随外加电压的变化而改变.
A series of poly (1-phenyl-1-octyne) derivatives {- [(C6H13) C═C (C6H4-p-CO2-R)] with chiral and luminescent chromophore side groups were designed and synthesized - (-) - menthyl (P4), - C6H4-p- (1R, 2S , 5R) - (-) - menthyl (P5), 2-naphthyl (P6), 4-biphenyl (P7)}. These catalysts were successfully prepared with WCl6-Ph4Sn as catalyst, The molecular weight (Mw up to 64000) polymers.The structure and properties of the polymers were characterized by NMR, TGA, UV, CD, PL and EL analysis methods.All the polymers showed good thermal stability, under the protection of N2 Condition, the 5% weight loss temperature is between 300 and 416 ° C. The bandgap of all the polymers is about 3.0 eV.Polymers P4 and P5 exhibit CD absorption corresponding to the helicity of the polymer chains.Under UV Under irradiation, the P3-P7 THF solution emitted intense blue light, the maximum emission wavelength was about 485nm and the quantum efficiency was higher than 20% .The polymer film emission and its solution were emitted in the same spectral region and showed slight aggregation Induced quenching.An ITO / polymer: PVK / BCP / Alq3 / LiF / Al multilayered polymer EL device was fabricated with a maximum emission wavelength of 487 nm.With the side , The maximum external quantum efficiency of the device also changes, and P6 shows the highest external quantum efficiency (0.16%). The EL devices have good spectral stability and their EL emission peaks hardly change with the applied voltage Change and change.