Synthesis and light-emitting properties of a carbazole-containing hyperbranched conjugated poly(phenylene vinylene)

被引：0
作者：
Kim, Kyeongmin [1 ]
Ahn, Taek [1 ]
机构：
[1] Kyungsung Univ, Dept Chem, 309 Suyeong Ro, Busan 48434, South Korea
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2020年 / 705卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
carbazole; hyperbranched polymer; photoluminescence; ELECTROLUMINESCENT POLYMERS; PHOTOPHYSICAL PROPERTIES; BLUE; COPOLYMERS;
D O I：
10.1080/15421406.2020.1743427
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new carbazole-containing hyperbranched conjugated poly(phenylene vinylene) (Hyper-PCPPV) was synthesized through the Wittig polycondensation polymerization. Hyper-PCPPV has good solubility in common organic solvents and showed excellent thermal stability up to 425 degrees C with less than 5% weight loss. The photophysical properties of Hyper-PCPPV were investigated and compared with a carbazole-containing linear conjugated poly(para-phenylene vinylene) (Linear-PCPPV). An absorption maximum of Hyper-PCPPV film was determined at 353 nm which was far blue shifted than that of Linear-PCPPV (403 nm). Hyper-PCPPV showed blue photoluminescence (PL) peak at 448 nm. In addition, Hyper-PCPPV exhibited almost no excimer or aggregate emission peaks even when the polymer film was annealed at 80 degrees C for 30 min in air condition.
引用
收藏
页码：112 / 119
页数：8
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