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以1,3-二(二苯基膦)丙烷二氯化镍(Ⅱ)[Ni(dppp)Cl2]作催化剂,通过4,7-二溴-2,1,3-苯并噻二唑格氏(Grignard)试剂分别与3,3′-二甲基联苯二胺、对苯二胺共聚得到了两种新型主链含刚性和柔性链结构的苯并噻二唑类共轭聚合物。通过FT-IR、1H-NMR、UV-Vis、XRD、TGA等测试手段对聚合物的化学结构和性能进行了表征。结果表明:聚合物的紫外-可见最大吸收波长分别在306 nm和380 nm处出现,荧光激发峰分别出现在378 nm和463 nm,相应的荧光发射峰分别在493、562 nm处出现。共轭聚合物具有一定的结晶性和热稳定性。
Using 1,3-bis (diphenylphosphino) propane nickel (II) [Ni (dppp) Cl2] as a catalyst and 4,7-dibromo-2,1,3-benzothiadiazole (Grignard) reagents were respectively copolymerized with 3,3’-dimethylbiphenylenediamine and p-phenylenediamine to obtain two novel benzothiadiazole conjugated polymers with rigid and flexible main chains. The chemical structures and properties of the polymers were characterized by FT-IR, 1H-NMR, UV-Vis, XRD and TGA. The results showed that the UV-visible maximum absorption wavelength of the polymer appeared at 306 nm and 380 nm, respectively. The fluorescence excitation peaks appeared at 378 nm and 463 nm, respectively, and the corresponding fluorescence emission peaks appeared at 493 and 562 nm, respectively. Conjugated polymers have some crystallinity and thermal stability.