Polyaniline–nylon 6 composite fabric for ammonia gas sensor
✍ Scribed by Kyung Hwa Hong; Kyung Wha Oh; Tae Jin Kang
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 130 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Abstract
Conducting polymers constitute a new class of sensing materials, which can be prepared by a simple oxidative polymerization method. An ammonia gas sensor was prepared by polymerizing aniline on the surface of nylon 6 fabrics and doped with various acids in this study. The fabricated polyaniline (PANI)–nylon 6 composite fabrics showed high sensitivity and fast response for NH~3~ gas. In particular, the PANI–nylon 6 composite fabrics doped by monocarboxylic acids (such as formic acid, acrylic acid, and trichloroacetic acid) displayed excellent sensitivity and fast response. Moreover, no significant changes in the T~m~ and crystallinity were found in these composite fabrics. Hence the PANI–nylon 6 composite fabrics are attractive alternatives for use in sensing applications because of their excellent sensing ability, low cost, and ease of preparation. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 37–42, 2004