Hydrochromic polydiacetylene composite composition, hydrochromic thin film using same, and use thereof
US-2015329656-A1 · Nov 19, 2015 · US
Polydiacetylene and polydiacetylene/ZnO nanocomposite sensors
US10161876B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10161876-B2 |
| Application number | US-201514842965-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 2, 2015 |
| Priority date | Sep 2, 2014 |
| Publication date | Dec 25, 2018 |
| Grant date | Dec 25, 2018 |
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Abstract
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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.
First claim
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What is claimed is: 1. A composition comprising a polydiacetylene (PDA) selected from the group consisting of 10,12-pentacosadiynoic acid (PCDA) and 10,12-docosadiynedioic acid (DCDA) and ZnO nanoparticles wherein the ZnO nanoparticles are unalloyed and have an average particle size of 0.01-99 nm wherein the composition comprises greater than 90 wt % of the PDA and less than 10 wt % ZnO nanoparticles. 2. The composition according to claim 1 comprising at least 5 wt % of ZnO nanoparticles. 3. The composition according to claim 1 wherein the ZnO nanoparticles have an average particle size of 0.1-99 nm. 4. The composition according to claim 1 wherein the ZnO nanoparticles have an average particle size of 0.1-15 nm. 5. The composition according to claim 1 consisting of greater than 90 wt % of PDA and less than 10 wt % of ZnO nanoparticles. 6. The composition according to claim 1 wherein the PDA comprises a poly-PDA. 7. A chemical sensor comprising a film comprising a PDA selected from the group consisting of PCDA and DCDA and ZnO nanoparticles disposed on a substrate wherein the ZnO nanoparticles are unalloyed and have an average particle size of 0.01-99 nm wherein the film comprises greater than 90 wt % of the PDA and less than 10 wt % of ZnO nanoparticles. 8. The chemical sensor according to claim 7 wherein the film consists of the PDA and less than 10 wt % of ZnO nanoparticles. 9. A thermochromically reversible composition comprising PCDA and unalloyed ZnO nanoparticles having an average particle size of 0.01-99 nm wherein the thermochromically reversible composition comprises greater than 90 wt % of PCDA and less than 10 wt % ZnO nanoparticles. 10. The thermochromically reversible composition according to claim 9 comprising at least 5% ZnO by weight of the composition. 11. The thermochromically reversible composition according to claim 9 consisting of greater than 90% PCDA and less than 10% ZnO nanoparticles by weight of the composition. 12. A thermochromically reversible film sensor comprising a film comprising the composition of claim 9 formed on a substrate.
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Macromolecular compounds · CPC title
- G01N21/78Primary
producing a change of colour · CPC title
Organic tenebrescent materials · CPC title
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Frequently asked questions
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- What does patent US10161876B2 cover?
- 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.
- Who is the assignee on this patent?
- New Jersey Inst Technology
- What technology area does this patent fall under?
- Primary CPC classification G01N21/78. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 25 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).