학술논문
Microwave absorption of poly-N-vinylcarbazole--polyaniline composites
Document Type
Report
Source
Polymer Engineering and Science. January 1, 2011, Vol. 51 Issue 1, p54, 8 p.
Subject
Language
English
ISSN
0032-3888
Abstract
Poly-N-vinylcarbazole-polyaniline (PANI) composites were synthesized using different loading concentration of aniline (0.025-0.1 M) for their microwave absorption characteristics. The obtained composites were studied by Fourier transform infrared spectroscopy, thermogra-vimetric analysis technique, and atomic force microscope for their chemical structure, thermal stability, and the surface modifications, respectively. The conductivity increased much with the increase of aniline concentration in the composites. The composite sheets exhibited a strong microwave absorption in the microwave range of 1-10 GHz and achieved a maximum absorption value of 33 dB. The position of absorbing peak shows a mixed trend moving from lower to higher and again to lower with an increasing the concentration of aniline in the poly-N-vinylcarba-zole-PANI. The new polymer composite exhibited an appreciable electromagnetic interference shielding efficiency compared with the previously reported PANI composites. POLYM. ENG. SCI., 51:54-61, 2011. [C]2010 Society of Plastics Engineers
INTRODUCTION Conducting polymers have a variety of applications in the industrial, scientific, and medical fields. Applications such as anticorrosion, static coating electromagnetic shielding, comes under first generation. Second generation of [...]
INTRODUCTION Conducting polymers have a variety of applications in the industrial, scientific, and medical fields. Applications such as anticorrosion, static coating electromagnetic shielding, comes under first generation. Second generation of [...]