基于苯并噻二唑的圆偏振发光聚合物的合成与性能  

Synthesis and Properties of Circularly Polarized Luminescent Polymers Based on Benzothiadiazole

作　　者：徐鹏 傅妮娜 XU Peng;FU Nina(Institute of Advanced Materials(IAM),School of Materials Science&Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]南京邮电大学材料科学与工程学院,信息材料与纳米技术研究院,江苏南京210023

出　　处：《广州化学》2025年第1期69-73,I0004,共6页Guangzhou Chemistry

基　　金：浙江省柔性电子重点实验室开放基金资助项目(2023FE003)。

摘　　要：用手性微扰策略设计并合成了基于苯并噻二唑的聚合物(R/S-PFDBT)。利用核磁共振氢谱仪(^(1)H-NMR)和凝胶渗透色谱仪(GPC)表征了R/S-PFDBT的化学结构。利用磁圆偏振荧光光谱仪表征了R/S-PFDBT的圆偏振发光(CPL)性质,R-PFDBT和S-PFDBT在薄膜状态下的发光不对称因子(g_(lum))分别为+2.1×10^(-3)和-4.0×10^(-3)。采用共沉淀法制备了纳米颗粒R/S-PFDBT NPs。利用透射电子显微镜(TEM)、动态激光光散射(DLS)表征了纳米粒子的形貌。对纳米颗粒进行了MTT细胞毒性实验和细胞内共聚焦成像,结果表明,R-PFDBT NPs细胞毒性较低并且具有良好的成像能力。Chiral perturbation strategy was employed to design and synthesize polymers based on benzothiadiazole(R/S-PFDBT).The chemical structure of R/S-PFDBT was characterized using proton nuclear magnetic resonance spectroscopy(^(1)H-NMR).The circularly polarized luminescence(CPL)properties of R/S-PFDBT were characterized using a magnetic circularly polarized fluorescence spectrometer.The emission dissymmetry factors(g_(lum))of R-PFDBT and S-PFDBT in the thin film state were+2.1×10^(-3)and-4.0×10^(-3),respectively.R/S-PFDBT NPs were prepared by a co-precipitation method.The morphology of the nanoparticles was characterized using transmission electron microscopy(TEM)and dynamic light scattering(DLS).The nanoparticles were subjected to MTT cell toxicity experiments and intracellular confocal imaging,revealing that R-PFDBT NPs exhibited low cytotoxicity and excellent imaging capability.

关 键 词：苯并噻二唑 有机纳米材料 圆偏振发光 细胞成像 

分 类 号：TQ317[化学工程—高聚物工业]