| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
A Colorimetric Hydrocarbon Sensor System Based on a Swelling-Induced Mechanochromic Polydiacetylene |
| 초록 |
Exceptional challenges have confronted the rational design of colorimetric sensors for saturated aliphatic hydrocarbons (SAHCs). The main reasons for this difficulty are the extremely nonpolar nature of these targets and their lack of functional groups that can interact with probes. By taking advantage of a mechanochromic conjugated polydiacetylene (PDA) and the hydrocarbon induced swelling properties of polydimethylsiloxane (PDMS), we have fabricated a sensor film that enables simple, colorimetric differentiation between a variety of C5 to C14 aliphatic hydrocarbons. The unprecedented PDA-PDMS composite sensor undergoes a blue-to-red colorimetric transition in time regimes that are dependent on the chain length of the hydrocarbon target. In addition, the development of the red color is directly proportional to the swelling ratio of the film. This straightforward approach enables naked eye differentiation between n-pentane and n-heptane. |
| 저자 |
박동훈, 김종만
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| 소속 |
한양대 |
| 키워드 |
Polydiacetylene; Hydrocarbons; Mechanochromism; Polydimethylsiloxane; Sensors
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| E-Mail |
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