Synthesis and chemical properties of pyrophosphoric acid-doped polyaniline and copolymers of o-phenylenediamine with aniline and 3,4-ethylenedioxythiophene
Synthesis and chemical properties of pyrophosphoric acid-doped polyaniline and copolymers of o-phenylenediamine with aniline and 3,4-ethylenedioxythiophene
复制标题
DOI：
10.1007/s00289-018-2590-9
复制
发表时间：
2018-11
期刊：
影响因子：
3.2
通讯作者：
I. Yamaguchi;Sayo Kinugawa;Aohan Wang
中科院分区：
文献类型：
--
作者：
I. Yamaguchi;Sayo Kinugawa;Aohan Wang
在焦磷酸（PA）存在下，以过硫酸铵为引发剂，通过缩聚反应合成了苯胺（P（ANi）PA）和邻苯二胺（P（PDA）PA）的均聚物（沿着）以及PDA与苯胺（ANi）和3，4-乙撑二氧噻吩（3，4-EDOT）的共聚物（P（PDA/ANi）PA）。用碱处理聚合物导致产生相应的中性聚合物。通过使用1H NMR光谱分析N-乙酰化聚合物来确定聚合物中含有P（PDA）单元的NH 2基团的含量。通过将PA交联聚合物浸入有机溶剂中获得弹性凝胶。P（ANi）PA和P（PDA/ANi）PA的紫外-可见吸收光谱分别出现阳离子自由基（极化子）和双阳离子（双极化子）吸收峰。P（ANi）PA和P（PDA/ANi）PA的电导率均高于相应的中性聚合物。
The homopolymers of aniline (P(ANi)PA) ando-phenylenediamine (P(PDA)PA) along with the copolymers of PDA with aniline (ANi) (P(PDA/ANi)PA) and 3,4-ethylenedioxythiophene (P(PDA/EDOT)PA) were synthesized via a polycondensation reaction that was initiated with ammonium persulfate in the presence of pyrophosphoric acid (PA). Treating the polymers with an alkaline resulted in the generation of the corresponding neutral polymers. The content of the NH2groups within the polymers, which contained a P(PDA) unit, was determined by analyzing theN-acetylated polymers using1H NMR spectroscopy. Elastic gels were obtained by dipping the PA cross-linked polymers into an organic solvent. The UV–Vis spectra forP(ANi)PAandP(PDA/ANi)PAexhibited absorption peaks corresponding to the cation radical (polaron) and dication (bipolaron) bands. The electrical conductivities ofP(ANi)PAandP(PDA/ANi)PAwere higher than those of the corresponding neutral polymers.