论文部分内容阅读
通过Schiff-base法合成了侧链含亚胺的新型噻吩类单体2,5-二溴-3-[(芴-2-基)亚胺次甲基]噻吩。以Pd(PPh3)2Cl2和CuI为催化剂,经Sonogashira偶联合成了4种新型共轭共聚物Th-PE-6、Th-PE-8、Th-PE-10、Th-PE-12。经FT-IR、1 H-NMR、UV-Vis、循环伏安(CV)和凝胶渗透色谱(GPC)等测试手段对其进行了表征。结果表明:共聚物Th-PE-8、Th-PE-10、Th-PE-12在四氢呋喃溶液中发黄绿光,最大发射峰分别位于467、473nm和470nm。其中Th-PE-6和Th-PE-8具有较好的电化学性能,在-0.2～0.8V均出现3对氧化还原峰。
The novel thiophene monomer 2,5-dibromo-3 - [(fluoren-2-yl) imide methine] thiophene with side chain imine was synthesized by Schiff-base method. Four novel conjugated copolymers Th-PE-6, Th-PE-8, Th-PE-10 and Th-PE-12 were synthesized by Sonogashira coupling using Pd (PPh3) 2Cl2 and CuI as catalysts. It was characterized by FT-IR, 1 H-NMR, UV-Vis, cyclic voltammetry (CV) and gel permeation chromatography (GPC). The results showed that the copolymers Th-PE-8, Th-PE-10, Th-PE-12 yellow-green light in tetrahydrofuran solution, the maximum emission peak located at 467,473nm and 470nm. Among them, Th-PE-6 and Th-PE-8 have good electrochemical performance, and there are 3 pairs of redox peaks at -0.2 ~ 0.8V.