侧链接有噁二唑的硅氧烷嵌段聚对苯乙烯撑衍生物的合成及其性能研究

Synthesis and Performance Study of Oxadiazole Substituted in the Side Chain and Siloxane Blocked Poly-phenylene Vinylene Derivative

在强碱条件下,单体2-(4-辛氧基苯基)-5-[4-(2,5-二溴甲基苯氧基)苯基]-1,3,4-噁二唑和二甲基二对溴甲基苯氧基硅烷发生Gilch脱卤聚合反应,成功合成了一种新型的侧链接有噁二唑的硅氧烷嵌段聚对苯乙烯撑衍生物(8),其结构经FT-IR表征。用UV-Vis,FL和DSC研究了8的光学性能和热稳定性。结果表明,8的热稳定性较单体有所改善;最大发射峰在480 nm。

A novel poly-phenylene vinylene derivative（8） in the side chain with oxadiazole were synthesized by the Gilch polymerization reaction of 2-{4-[2,5-bis（bromomethyl）phenoxy]phenyl}-5-[4-（octyloxy）phenyl]-1,3,4-oxadiazole with bis[4-（bromomethyl）phenoxy]dimethylsilane.The structure was confirmed by FT-IR.The optical property and thermal stability of 8 were investigated by UV-Vis,FL and DSC.The results showed that the thermal stability of 8 had a better improvement compared with its monomer and maximum peak at 480 nm.