手性联二萘侧基聚(3, 3'-联咔唑对苯二腈)的合成及其聚集诱导发光和圆偏振发光性能研究

Synthesis, Aggregation-Induced Emission and Circularly Polarized Luminescence of Poly(3, 3'-bicarbazolylterephthalonitrile) with Chiral Binaphthalene Pendant Groups

摘要: 以手性联二萘(BINOL)取代的2, 3-二氟对苯二腈和3, 3'-联咔唑为单体，通过碳-氮偶联反应得到一对共轭聚合物(R)-P1和(S)-P1，并且通过¹H NMR与¹³C NMR、凝胶渗透色谱(GPC)、热重分析(TGA)、荧光发射光谱(PL)、圆二色谱(CD)和圆偏振发光(CPL)光谱等对聚合物的化学结构、分子量、热稳定性以及光物理性质等进行了表征.结果表明：该聚合物具有明显的聚集诱导发光(AIE)性质；手性联二萘侧基能有效地诱导共轭主链的微环境，使该聚合物具有手性活性，且表现出CPL特性.

Abstract: A couple of conjugated polymers (R)-P1 and (S)-P1 were synthesized using chiral Binaphthalene (BINOL) substituted 2, 3-tetrafluoroterephthalonitrile and 3, 3'-bicarbazole as the monomers via C-N coupling reaction. The chemical structures and properties of the polymers were characterized with ¹H NMR, ¹³C NMR, gel permeation chromatography (GPC), thermogravimetric analysis (TGA) as well as PL spectra, circular dichroism(CD) and circularly polarized luminescence (CPL) spectra. The experimental results suggested that the obtained polymers were aggregation-induced emission (AIE) and CPL active, manifesting the chirality transmission from 1, 1'-binaphthalenependant groups to the conjugated main chain.