Synthesis and Characterization of Alternating Copolymers of Fluorene and Oxadiazole
作者:Jianfu Ding、Michael Day、Gilles Robertson、Jacques Roovers
DOI:10.1021/ma011093n
日期:2002.4.1
tetrazole route or the Suzuki coupling reaction. In the polymers the oxadiazole units were evenly dispersed in the main chain at every one, P(F1-alt-Ox), three, P(F3-alt-Ox), or four, P(F4-alt-Ox), fluorene units. Another copolymer with an asymmetric repeat unit structure, P(F3−Ox−F1−Ox) has also been prepared for comparison. In this study, the tetrazole route has been demonstrated to offer several advantages
通过四唑途径或Suzuki偶联反应已经制备了9,9-二辛基芴和恶二唑的交替共聚物。在聚合物中,恶二唑单元均匀地分散在主链上,每一个P(F 1 - alt -Ox),三个P(F 3 - alt -Ox)或四个P(F 4 - alt -Ox ),芴单元。具有不对称重复单元结构的另一种共聚物P(F 3 -Ox-F 1-Ox)也已准备好进行比较。在这项研究中,与其他恶二唑环形成反应相比,已证明四唑途径为制备具有明确结构的聚恶二唑提供了多个优势。这些优点包括:清洁快速的反应,温和的反应条件,高收率和高分子量的产品。共聚物的玻璃化转变温度在98到150°C的范围内,并且共聚物具有高的热稳定性,分解温度约为430°C。溶液中所有共聚物的紫外可见吸收和光致发光特性与聚(9,9-二辛基芴)相似。在CH 2 Cl 2溶液中,所有共聚物均在蓝光范围内发出荧光,量子产率约为70%。