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采用先配合再聚合的技术路线,先以Zn2+为中心离子,2-(2-羟基苯基)苯并噻唑为第一配体、10-十一烯酸为活性配体合成了反应型锌配合物2-(2-羟基苯基)苯并噻唑-十一烯酸-锌[Zn(BTZ)(UA)];再采用溶液聚合法,将Zn(BTZ)(UA)与苯乙烯共聚制备了聚苯乙烯-2-(2-羟基苯基)苯并噻唑-十一烯酸-锌[St-co-Zn(BTZ)(UA)]。通过红外光谱、紫外光谱、荧光光谱和热重分析对配合物和聚合物的结构和发光性能进行了表征。红外和紫外光谱表明,共聚物不仅表现出了聚苯乙烯的吸收,也表现出了配合物的吸收;荧光光谱表明,配合物在395nm的激发波长下发射蓝绿光,发射峰位于471nm处;聚合物在395nm的激发波长下,发射蓝光,发射峰位于451nm处,色坐标为(0.145,0.139),位于蓝光区;热重分析显示,聚合物的热分解温度为273℃,可用于三基色白光LED荧光粉的蓝光成分。
First with the re-polymerization technology route, first with Zn2 + as the center ion, 2- (2-hydroxyphenyl) benzothiazole as the first ligand, 10-undecylenic acid as the active ligand synthesis of reactive zinc complex Zn (BTZ) (UA)] was prepared by copolymerization of Zn (BTZ) (UA) with styrene by solution polymerization Polystyrene-2- (2-hydroxyphenyl) benzothiazole-undecylenate-zinc [St-co-Zn (BTZ) (UA)]. The structures and luminescent properties of the complexes and polymers were characterized by FTIR, UV, FTIR and TGA. The results of IR and UV showed that the copolymer showed not only the absorption of polystyrene but also the absorption of the complex. The fluorescence spectra showed that the complex emitted blue-green light at the excitation wavelength of 395 nm and the emission peak was at 471 nm. The polymer emits blue light at an excitation wavelength of 395 nm with an emission peak at 451 nm and a color coordinate of (0.145, 0.393) in the blue region. Thermogravimetric analysis shows that the thermal decomposition temperature of the polymer is 273 ° C., White LED phosphor blue component.