Template synthesis of polyaniline in the presence of phosphomannan
2002; Elsevier BV; Volume: 129; Issue: 2 Linguagem: Inglês
10.1016/s0379-6779(02)00049-8
ISSN1879-3290
AutoresGuo‐Li Yuan, Noriyuki Kuramoto, Shi‐Jian Su,
Tópico(s)Electrochemical sensors and biosensors
ResumoThe synthesis of a water-soluble and conducting polyaniline (PANI)–phosphomannan (PMa) complex is presented. Chemical polymerization of aniline was carried out in the presence of PMa, a novel polymeric phosphoric acid and a kind of biomaterial. It was found that the extent of polymerization was affected greatly by initial molar ratio of aniline to PMa in reaction media. A water-soluble and conducting PANI–PMa complex has been obtained under suitable conditions and it exhibited a maximum conductivity by appropriate control of molar ratio of aniline to PMa. The synthesized PANI was characterized by UV–VIS, Fourier transform infrared spectrometer (FT-IR), thermogravimetric analysis (TGA) and inherent viscosity. TGA showed that PANI–PMa complex has highly thermal stability, which was also confirmed by conductivity measurement after exposing the casting films at high temperature.
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