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在紫外光照射的条件下,以CpCo(CO)2为催化剂,通过3,5-双-(4-炔苯基)-4-苯基-1,2,4-三唑和2,5-双-(4-炔苯基)-1,3,4-噁二唑的双炔分别与1-辛炔的[2+2+2]环三聚反应,合成了一类含芳杂环的可溶于普通有机溶剂的新型超支化聚合物。采用红外光谱、核磁共振谱、热失重分析、紫外吸收光谱、荧光光谱、循环伏安法等方法对聚合物进行结构表征和性能测试。结果表明,聚合物具有优异的热稳定性,尤其是含三唑的聚合物热失重5%的分解温度在450℃以上;在800℃时,残余碳化率高达75%。在光激发的条件下,这类聚合物在二氯甲烷溶液中发射深蓝光,其荧光量子效率可达80%。电化学测试结果表明,这类含芳杂环聚合物具有较好的电子传输能力。
Under the irradiation of UV light, CpCo (CO) 2 was used as a catalyst to convert 3,5-bis (4-propynyl) -4-phenyl-1,2,4-triazole and 2,5- The double alkyne of bis- (4-alkynyl) -1,3,4-oxadiazole was cyclized with [2 + 2 + 2] New hyperbranched polymer soluble in common organic solvents. The structure and properties of the polymers were characterized by IR, 1HNMR, TG, UVA, fluorescence and cyclic voltammetry. The results show that the polymer has excellent thermal stability. In particular, the decomposition temperature of 5% of the triazole-containing polymer is above 450 ℃ and the residual carbonization rate is up to 75% at 800 ℃. Under photoexcited conditions, these polymers emit deep blue light in methylene chloride solution with fluorescence quantum efficiencies up to 80%. Electrochemical test results show that these aromatic ring-containing polymers have good electron transport ability.