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哒嗪与3-庚基噻吩共聚物的合成及其表征
Synthesis and Properties of π-Conjugated Pyridazine and 3-Heptylthiophene Copolymer
【摘要】 在二价镍配合物催化剂存在下,用3,6-二氯哒嗪与3-庚烷基-2,5-二溴噻吩格氏试剂共聚合成了哒嗪与烷基噻吩共聚物,并利用红外光谱(FT-IR),核磁共振谱(1H-NMR)等对其结构和性能进行了表征。该合成方法所得共聚物的收率为75%,而且溶解于DM F、DM SO、CHC l3等普通溶剂中。共聚物的紫外-可见吸收光谱(UV-v is)中在405 nm处观察到最大吸收峰。用荧光光谱(PL)和热重分析(TGA)对所得聚合物的荧光特性和热稳定性作了初步探讨。
【Abstract】 Poly(3-heptylthiophene-alt-pyridazine) was prepared by nickel(II) complexes catalyst.(Relative) copolymer obtained by this method gives isolated yields in 75%.The copolymer was characterized by FT-IR and()1H-NMR.The results show that the copolymer is in the structure as expected.The obtained copolymer is soluble in DMF,DMSO and CHCl3,etc.The UV-vis spectra of the copolymer show absorption peak at 405 nm in DMSO.Photoluminescence and thermogravimetric behavior of this copolymer are also initially discussed by PL and TGA analysis.
【Key words】 3,6-dichloropyridazine; 2,5-dibromo-3-heptylthiophene; Ni(II) catalyst; πconjugated polymers;
- 【文献出处】 华东理工大学学报(自然科学版) ,Journal of East China University of Science and Technology(Natural Science Edition) , 编辑部邮箱 ,2006年10期
- 【分类号】O633.5
- 【被引频次】2
- 【下载频次】92