Synthesis and properties of novel TEMPO-contained polypyrrole derivatives as the cathode material of organic radical battery
作者:Lihuan Xu、Fang Yang、Chang Su、Lvlv Ji、Cheng Zhang
DOI:10.1016/j.electacta.2014.03.017
日期:2014.6
Two 2,2,6,6-tetramethylpiperidinyl-N-oxy (TEMPO) contained polypyrrole (PPy) derivatives with the different side-chain length were synthesized by esterification of 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl free radial with pyrrole butyric acid and pyrrole caproic acid. Then the homopolymers of 4-(3-(Pyrrol-1-yl)butyryloxy)-2,2,6,6-tetramethylpiperidin-1-yloxy (PPy-B-TEMPO) and 4-(3-(Pyrrol-1-yl)hexanoyloxy)-2
通过4-羟基-2,2,6,6-四甲基哌啶-1的酯化反应合成了两个侧链长度不同的含2,2,6,6-四甲基哌啶基-N-氧基(TEMPo)的聚吡咯(PPy)衍生物-吡咯丁酸和吡咯己酸的无氧自由基。然后是4-(3-(Pyrrol-1-yl)butyryloxy)-2,2,6,6-tetramethylpiperidin-1-yloxy(PPy-B-TEMPO)和4-(3-(Pyrrol-1-通过化学氧化聚合反应制得(基)己基己氧基)-2,2,6,6-四甲基哌啶-1-基氧基(PPy-C-TEMPO)。通过傅立叶变换红外光谱(FTIR),紫外可见光谱(UV-vis),扫描电子显微镜(SEM),循环伏安图(CV)和电化学阻抗谱(EIS)对制备的聚合物的结构,形态,电化学性能进行了表征,分别。还,通过恒电流充放电试验研究了所制备聚合物的充放电性能。结果表明,合成后的氮氧化物自由基聚合物在2.5–3.0 V和3