In-Situ Infrared Study of the Synthesis of Polyaniline Under Acid and Neutral pH

被引：6
作者：
Lohrasbi, Mehdi [1 ]
Hedayat, Nader [1 ]
Chuang, Steven S. C. [2 ]
机构：
[1] Univ Akron, Dept Chem & Biomol Engn, Akron, OH 44325 USA
[2] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA
来源：
TOPICS IN CATALYSIS | 2014年 / 57卷 / 17-20期
关键词：
Polyaniline (PANI); Phenazine; In-situ attenuated total reflection infrared (ATR-IR) spectroscopy; Self-assembly; OXIDATIVE POLYMERIZATION; EMERALDINE FORM; ANILINE; FILMS; SPECTROSCOPY; NANOTUBES; EVOLUTION; SENSOR; BASE;
D O I：
10.1007/s11244-014-0334-0
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In-situ infrared study of polyaniline (PANI) synthesis showed that the reaction initiated at pH = 1.5 produced a granule PANI microstructure via para-linked dimers of 4-aminodiphenylamine, exhibiting gamma(C-H) at 802 cm(-1); the reaction initiated at pH = 5.0 and 7.0 produce fiberous, and planar microstructures via ortho-linked dimers of 1,2-aminodiphenylamine and phenazine, exhibiting gamma(C-H) at 738 and nu(C=N) at 1446 cm(-1). The doped PANI that was produced at pH less than 5.0 showed a feature-less IR background absorption above 1600 cm(-1). This absorption could correspond to pi-electron delocalization as an indicative of polyaniline conductivity.
引用
收藏
页码：1570 / 1575
页数：6
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