Characterization of self-doped conducting polyanilines bearing phosphonic acid and phosphonic acid monoester

被引：17

作者：

Abe, Yasushi ^{[1
,2
]}

Amaya, Toru ^{[1
]}

Inada, Yuhi ^{[1
]}

Hirao, Toshikazu ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan

[2] Daihachi Chem Ind Co Ltd, Osaka R&D Lab, Higashiosaka, Osaka 5770056, Japan

来源：

SYNTHETIC METALS | 2014年 / 197卷

关键词：

Polyaniline; Conducting polymer; Self-doping; Phosphonic acid; Spin-coating film; Redox transformation; SULFONIC ACID)/GOLD NANOPARTICLES; POLY(2-METHOXYANILINE-5-SULFONIC ACID); POLY(O-AMINOBENZYLPHOSPHONIC ACID); POLY(ANILINE SULFONIC-ACID); SUBSTITUTED POLYANILINE; PHYSICAL-PROPERTIES; GOLD NANOPARTICLES; TRANSITION-METALS; AQUEOUS-SOLUTION; REDOX;

D O I：

10.1016/j.synthmet.2014.09.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel self-doped polyanilines bearing phosphonic acid, poly(2-methoxyaniline-5-phosphonic acid) (PMAP) and poly(2-methoxyaniline-5-phosphonic acid monoethyl ester) (PMAPE) were characterized in the following properties: (1) thermostability, (2) morphology in the solid state, (3) absorption and transparency in the spin-coating film, (4) delocalization of polaron, (5) doping efficiency, and (6) chemical oxidation and reduction. The UV-vis-NIR absorption spectra of the spin-coating films of PMAP/pyridine (1:2) and PMAPE/pyridine (1:1) show the polaron band and free carrier tail, which are characteristic to the conducting polymers. The highly transparent films of them (up to similar to 90% transparency) were formed by spin-coating. Concerning the property of the polaron in the polymer, the ESR spectra suggest that polaron of PMAP/pyridine (1:2) is more delocalized than that of PMAPE/pyridine (1:1). The XPS experiments indicate that the doping efficiency of PMAP is much higher than that of PMAPE, which is likely to be due to diprotic acid units derived from phosphonic acid of PMAP. Oxidation and reduction of PMAP and PMAPE were demonstrated by treatment with the corresponding oxidant {(NH4)(2)S2O8} and reductant (N2H4 center dot H2O), respectively. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：240 / 245

页数：6

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