| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Highly Sensitive Acetone Gas Sensor based on Polyaniline-Hydroxypropyl Methylcellulose Core-Shell shaped Nanoparticle |
| 초록 |
This study aims to discuss the use of polyaniline(PANi) - hydroxypropyl methylcellulose (HPMC) core-shell shaped nanoparticle sensors capable of detecting small concentrations of acetone in human breath to diagnose diabetes in patients. Core–shell shaped PANi@HPMC nanocomposites with an average diameter of 200 nm were fabricated via a simple one-pot emulsion polymerization method. By treating the nanoparticle surface with heptadecafluorooctanesulfonic acid (C8F) doping agent, a hydrophobic substituent was attached to the outermost shell of the core-shell shaped nanocomposite to give resistance to water molecules. The obtained C8F-doped PANi@HPMC nanocomposite exhibited high conductivity as well as moisture resistance and high sensitivity to acetone gas. According to these results, the developed sensor showed reliable detection at a concentration of 50 ppb even at room temperature and the resistance change could be controlled to less than 10%, at 80% RH (relative humidity) conditions. |
| 저자 |
김지선, 변준호, 양승욱, 김진열, 김민혁
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| 소속 |
국민대 |
| 키워드 |
polyaniline; acetone sensor
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| E-Mail |
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