Polydiacetylene and polydiacetylene/ZnO nanocomposite sensors
US10161876B2 · kind B2 · utility
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Key dates
| Filing date | Sep 2, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jan 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/757
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Polydiacetylenes (PDAs) and PDA/ZnO nanocomposites based on the monomers: 10,12-pentacosadiynoic acid (PCDA), 10,12-tricosadiynoic acid (TCDA) and 10,12-docosadiynedioic acid (DCDA) monomers are chromatic chemical sensing agents for selected organic liquids. Thermochromically reversible compositions include PCDA and nanosize ZnO having a particle size range less than 100 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.