Title :
Synthesis of polyaniline microrods with high microwave absorption behaviours
Author :
Youyi Sun ; Guizhen Guo ; Binghua Yang ; Xin Zhou ; Hongyue Cui ; Yaqing Liu ; Guizhe Zhao
Author_Institution :
Res. Center for Eng. Technol. of Polymeric Composites of Shanxi Province, North Univ. of China, Taiyuan, China
fDate :
10/1/2010 12:00:00 AM
Abstract :
A facile method to prepare polyaniline (PANI)/toluene-p-sulphonic acid (TSA) microrods guided by polyvinyl pyrrolidone) (PVP) was developed. The structure of the PANI microrods was characterised by means of scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The average length and diameter of the microrods were about 25 and 7 μm, respectively. Furthermore, the effect of PVP concentration on morphology of the PANI was further investigated in detail. It showed that the morphology transferred from spheres to rods with increase in concentration. Moreover, the electrical and microwave absorption properties of products with various morphology (spheres and rods) were compared. And the result showed that the microrods products had higher electrical and microwave absorption properties compared with spherical products.
Keywords :
Fourier transform spectra; X-ray diffraction; electrical conductivity; infrared spectra; microwave spectra; polymer structure; polymers; rods (structures); scanning electron microscopy; FT-IR spectroscopy; PAn morphology; PVP concentration; SEM; TSA; X-ray diffraction; XRD; electrical property; high-microwave absorption behaviours; poly(vinyl pyrrolidone); polyaniline microrods; scanning electron microscopy; spheres; toluene-p-sulphonic acid;
Journal_Title :
Micro & Nano Letters, IET
DOI :
10.1049/mnl.2010.0108
