Table 1.
Polymer coatings of STW resonators, f0 = 433 MHz, used as VOC sensors.
| Sensor No. | Polymer | Supplier | Frequency Shift by Spray Coating [MHz] |
|---|---|---|---|
| 1 | PBMA: Poly(butyl methacrylate) | Aldrich, Milwaukee, WI, USA | −1.1138 |
| 2 | Polyurethane alkyd resin with trace isocyanates | RS Components, Corby, UK | −0.7400 |
| 3 | PECH: Polyepichlorohydrin | Aldrich, Milwaukee, WI, USA | −1.3271 |
| 4 | Silar-10C | Alltech, Deerfield, IL, USA | −0.4404 |
| 5 | PCFV: Poly(chlorotrifluoro ethylene-co-vinylidene fluoride) | Aldrich, Milwaukee, WI, USA | −1.0000 |
| 6 | L grease | Apiezon, London, UK | −0.6004 |
| 7 | PDMS: Polydimethylsiloxane | Macherey-Nagel, Düren, Germany | −0.4304 |
| 8 | PIB: Polyisobutylene | Aldrich, Milwaukee, WI, USA | −1.1233 |