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利用Pd(Ⅱ)配合物为催化剂,使用4,7-二溴-2-十二烷基-1,2,3-苯并三氮唑和1,4-二乙炔基-2,5-二(烷氧基)苯通过Sonogashira反应合成了3个带有不同长度烷氧基侧链,主链中含有1,2,3-苯并三氮唑单元的聚苯乙炔类聚合物。采用FT-IR、1H-NMR对其化学结构进行了表征。结果表明:这类聚合物的数均分子量在0.93×104～1.13×104,苯并三氮唑单元上长链烷基和苯环上长链烷氧基的存在使此类聚合物在CHCl3、THF等溶液中的溶解度较大,其固态薄膜也较容易制备,聚合物在固态薄膜状态下的紫外-可见最大吸收波长比在CHCl3溶液中红移了约45 nm,在固态薄膜状态下的荧光发射峰比在CHCl3溶液中也发生了较大的红移。
Using Pd (Ⅱ) complex as catalyst, 4,7-dibromo-2-dodecyl-1,2,3-benzotriazole and 1,4-diethynyl-2,5-di (Alkoxy) Benzene Polystyrene polymers with 1,2-benzotriazole units in the main chain were synthesized by Sonogashira reaction. Its chemical structure was characterized by FT-IR and 1H-NMR. The results showed that the number average molecular weight of these polymers ranged from 0.93 × 10 4 to 1.13 × 10 4. The presence of long chain alkyl groups on the benzotriazole units and the long chain alkoxy groups on the benzene ring made these polymers show good reproducibility in CHCl 3, THF and other solutions in the solubility of its solid film is also easier to prepare the polymer in the state of the solid state UV-visible maximum absorption wavelength than the red shift in the CHCl3 solution about 45 nm in the state of the solid film fluorescence Emission peak ratio in CHCl3 solution also occurred a larger redshift.