含偶氮苯(喹啉)和1,3,4-噁二唑聚合物的合成表征及性能  

The synthesis,characterization and properties of Polymers containing azobenzene(quinoline)and 1,3,4-oxadiazoles

作　　者：齐程远[1] 于世钧[2] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001 [2]辽宁师范大学化学化工学院,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2015年第1期100-104,共5页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(21173109);辽宁省教育厅科学技术研究项目(L2012383)

摘　　要：合成了1种新型侧链含有偶氮苯(喹啉)结构的预聚物(pre-LPOXD),利用POCl3关环得到新型含1,3,4-噁二唑结构聚合物(LPOXD),通过FT-IR、1 H NMR、TGA、UV-vis和荧光发射光谱进行了结构表征和性能测试.结果表明,pre-LPOXD和LPOXD质量损失5%的温度分别为223和241℃;pre-LPOXD(3×10-5g/mL的NMP溶液)在365nm紫外光照射下,266nm处芳香环B带π-π*跃迁和383nm处偶氮苯(喹啉)K带π-π*跃迁吸收峰逐渐减弱,光照6min后达到光稳态;在361,360nm光激发下,pre-LPOXD和LPOXD分别在407,462,410,453nm处发射蓝紫色荧光.A novel polymer （pre-LPOXD） containing azobenzene（quinoline） in the side chain was synthesized, further obtain novel polymer （LPOXD） containing 1,3,4-oxadiazoles using POCla cyclohexy lmaleimide. The structures and properties of the target polymers were comfirmed by FT-IR, ^1H NMR,TGA ,UV-vis and fluorescence emission spectrum. The results show that the temperatures at mass loss of 5% for pre-LPOXD and LPOXD are 223 and 241 ℃,respectively. The pre-LPOXD （3× 10^- 5g/mL NMP solution）took place trans-cis photoisomeriaation under 365 nm UV irradiation, the transition absorption peak of aromatic rings at 266 nm and the transition absorption peak of azobenzene（quinoline） at 383 nm were increasingly weakened. The photostationary state was obtained after irradiation for 6 min. Fluorescence emission peaks of pre-LPOXD and LPOXD appeared at 407, 462, 410 and 453 nm under excitation at 361 and 360 nm,

关 键 词：偶氮苯 喹啉 噁二唑 合成 性能 

分 类 号：O631[理学—高分子化学]