Polymer / single-walled carbon nanotube composite for gas detection
US-10697918-B2 · Jun 30, 2020 · US
Switchable single-walled carbon nanotube-polymer composites for CO2 sensing
US11733192B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11733192-B2 |
| Application number | US-201916574012-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 17, 2019 |
| Priority date | Sep 17, 2018 |
| Publication date | Aug 22, 2023 |
| Grant date | Aug 22, 2023 |
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- Title
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Abstract
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A sensor for carbon dioxide can include an amidine functional group.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition comprising: a polymer including a pyridyl amino side chain and an alkylazide side chain; a conductive material associated with the polymer. 2. The composition of claim 1 , wherein the conductive material includes a carbon nanotube, a conductive polymer, an inorganic semiconductor, a metal oxide, a carbon fiber, a carbon particle, graphite, graphene, carbon paste, metal particles, conducting ink, or combinations thereof. 3. The composition of claim 1 , wherein the polymer is a copolymer of an amine-containing monomer and an alkylazide monomer. 4. The composition of claim 1 wherein the polymer is a copolymer of vinyl pyridine and alkylazido vinyl benzene. 5. A sensor for detecting carbon dioxide comprising: a substrate; and a composition of claim 1 on the substrate. 6. The sensor of claim 5 , wherein the amidine-functional polymer is immobilized on a surface of the substrate. 7. The sensor of claim 5 , wherein the carbon conductive material includes a carbon nanotube. 8. The sensor of claim 5 , wherein the amidine-functional polymer is a random copolymer. 9. The sensor of claim 5 , wherein the amidine-functional polymer is a copolymer of an amine-containing monomer and an amidine-functional monomer. 10. The sensor of claim 9 , wherein the amine-containing monomer is a vinyl pyridine. 11. The sensor of claim 10 , wherein the vinyl pyridine is quaternized. 12. A method of detecting carbon dioxide comprising: exposing a composition of claim 1 to a sample; and measuring the conductivity change of the composition. 13. The method of claim 12 , wherein the amidine-functional polymer is immobilized on a surface of a substrate. 14. A method of preparing a sensor for detecting an analyte comprising: linking a composition of claim 1 to a substrate; quaternizing the amino side chain; and functionalizing the alkylazide side chain. 15. The method of claim 14 , wherein functionalizing the alkylazide side chain includes introducing an amidine-functional group to the side chain. 16. A composition comprising a polymer including amino side chain and an alkylazide side chain, and a conductive material associated with the polymer wherein the polymer is a copolymer of an amine-containing monomer and an alkylazide monomer and wherein the amine-containing monomer is a vinyl pyridine. 17. A composition comprising a polymer including amino side chain and an alkylazide side chain, and a conductive material associated with the polymer wherein the polymer is a copolymer of an amine-containing monomer and an alkylazide monomer and wherein the alkylazide monomer is an alkylazido vinyl benzene.
Assignees
Inventors
Classifications
- G01N27/126Primary
comprising organic polymers · CPC title
by a heterocyclic ring containing nitrogen · CPC title
Carbon nanotubes · CPC title
comprising nanoparticles · CPC title
- G01N33/004Primary
CO or CO2 · CPC title
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Frequently asked questions
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- What does patent US11733192B2 cover?
- A sensor for carbon dioxide can include an amidine functional group.
- Who is the assignee on this patent?
- Massachusetts Inst Technology
- What technology area does this patent fall under?
- Primary CPC classification G01N27/126. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 22 2023 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).