合成了同时含有偶氮苯和1,3,4-噻二唑的新型聚酰胺(P1,P2),采用FT-IR、1H NMR、GPC和TGA技术对其结构进行了表征和热性能测试.P1和P2的特性粘数分别为0.14和0.12 dL/g,质均相对分子质量Mw和相对分子质量分布指数PDI分别为28.8、24.8 kg/mol和1.71、1.74,质量损失5％的温度分别为320和322℃.长烷氧基侧链的引入改善了聚合物在氯仿和四氢呋喃等有机溶剂中的溶解性.采用紫外-可见吸收光谱、荧光光谱对聚合物的光学性能进行了研究.结果表明,在365 nm紫外光照射下,聚合物中偶氮苯发生反-顺异构化,P1和P2光稳态时顺式异构体比例分别为86.8％和77.4％,反-顺异构化效率分别为82.7％和73.7％.在366和363 nm光激发下,P1和P2的固体分别在418和425 nm处紫光波长范围内发射荧光.
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