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Synthesis of phenothiazine‐based electroluminescent polymers with a stable emission property
Author(s) -
Liu Yingliang,
Li Jianghui,
Cao Huayu,
Cao Shaokui,
Chen Zhijian,
Xiao Lixin,
Gong Qihuang
Publication year - 2008
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1173
Subject(s) - phenothiazine , electroluminescence , materials science , polymer , quinoxaline , photochemistry , polymer chemistry , organic chemistry , chemistry , nanotechnology , layer (electronics) , medicine , composite material , pharmacology
Two phenothiazine‐based polymers were synthesized by the Heck reaction of 3,7‐divinyl‐ N ‐octyl‐phenothiazine with 3,7‐diiodo‐ N ‐octyl‐phenothiazine and 5,8‐dibromo‐2,3‐diethylquinoxaline. The polymers were characterized by the measurements of 1 H‐NMR, IR, TG, GPC, CV, UV–Vis, and FL. The results indicated that the introduction of quinoxaline group makes the absorption, PL, and EL emission maxima red‐shifted. The EL emission maximum and the CIE 1931 coordinate value are stabilized at a constant value with the increase in operating voltages. Therefore, the polymers have a stable electroluminescent emission property. Copyright © 2008 John Wiley & Sons, Ltd.