| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터) |
| 권호 |
25권 2호, p.1220 |
| 발표분야 |
고분자 (Polymer) |
| 제목 |
Novel Design of Amine-Functionalized Semiconducting Polymer Gel for Highly Sensitive and Selective NO2 Sensor |
| 초록 |
Organic semiconductors-based gas sensors have been remarkable due to secondary interaction with analytes at room temperature. However, that advantage is double-edge sword in that cross-selectivity of various gases. Molecular modification enabling to introduce specific moiety can reduce the cross-selectivity, but the method degrades the intermolecular arrangement related to mobility. Also, organic semiconductors have slow recovery due to their porous structure. Thus, we designed Semiconducting Polymer Gel (SPG) composed of a semi-Interpenetrating Polymer Networks (semi-IPNs). The functional groups can be introduced through silanol groups which are present in semi-IPNs without the degradation of intermolecular arrangement. We utilized amine groups (electron-donating) as a functional group because of their strong interaction with NO2 (electron-withdrawing). The amine-functionalized SPG (NH2-SPG) showed higher sensitivity, and selectivity toward various gases. Recovery is also improved due to the suppressed gas penetration by amine groups on the surface. |
| 저자 |
고푸른산1, 김재희1, 박한울1, 권혁민1, 황해중1, 김승한2, 송애란3, 정권범3, 강문성2, 김도환1
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| 소속 |
1한양대, 2서강대, 3동국대 |
| 키워드 |
고분자 |
| E-Mail |
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| 원문파일 |
초록 보기 |
