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以4,7-二溴-2-十二烷基-1,2,3-苯并三氮唑和带不同碳数烷基的3-烷基噻吩格式试剂为单体,通过Ni(Ⅱ)配合物催化法分别合成了带有丁基、辛基和十二烷基侧链的共聚物,并采用FT-IR、1H-NMR对其化学结构进行了表征。所得共聚物的M n分别为0.57×104,0.59×104和0.49×104g/mol,其M w(g/mol)分别为1.25×104,1.24×104和0.96×104g/mol。所得共聚物在CHCl3、THF等溶剂中具有较好的溶解和成膜性。聚合物在CHCl3溶液中的紫外-可见最大吸收波长分别为433,432和415 nm,共聚物在固态薄膜状态下的紫外-可见最大吸收波长与溶液比较约红移8nm。3种共聚物表现出较好的荧光性能。
Using 4,7-dibromo-2-dodecyl-1,2,3-benzotriazole and 3-alkylthiophene reagents with different alkyl groups as monomers, Copolymers with butyl, octyl and dodecyl side chains were synthesized by complex catalysis. Their chemical structures were characterized by FT-IR and 1H-NMR. The M n of the copolymer obtained were 0.57 × 10 4, 0.59 × 10 4 and 0.49 × 10 4 g / mol, respectively, and the M w (g / mol) were 1.25 × 10 4, 1.24 × 10 4 and 0.96 × 10 4 g / mol, respectively. The obtained copolymer has good dissolution and film-forming properties in solvents such as CHCl3 and THF. The UV-vis absorption maxima of the polymer in CHCl3 solution were 433, 432 and 415 nm, respectively. The UV-Vis absorption maximum wavelength of the copolymer in the solid state was about 8 nm redshift. The three copolymers showed better fluorescence.