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Pressure-induced crystallization and topochemical cross-linking of conjugated polymers
US12570808B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12570808-B2 |
| Application number | US-202318543275-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 18, 2023 |
| Priority date | Dec 18, 2023 |
| Publication date | Mar 10, 2026 |
| Grant date | Mar 10, 2026 |
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Abstract
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Polytriacetylene, a unique conjugated polymer with all-carbon main-chains consisting of alternating double bonds and diacetylene units, can self-assemble into ordered structures under moderate pressures, driven by side-chain crystallization. At higher pressure, the polymer undergoes topochemical cross-linking reactions, resulting in insoluble materials with graphyne-like structural and property characteristics.
First claim
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The invention claimed is: 1 . A method for the pressure-induced crystallization of topochemical cross-linking of conjugated polymers, comprising: self-assembling a polytriacetlyene to provide an ordered 3D structure of polytriacetylene aggregate, and applying a moderate pressure to the polytriacetylene aggregate sufficient to provide a crystallized polytriacetylene aggregate. 2 . The method of claim 1 , wherein the moderate pressure is greater than 0.2 GPa and less than 4 GPa. 3 . The method of claim 1 , further comprising applying a higher pressure to the crystallized polytriacetylene aggregate sufficient to provide a topochemically crosslinked polytriacetylene having a graphyne-like structure. 4 . The method of claim 3 , wherein the higher pressure is greater than 4 GPa. 5 . The method of claim 1 , wherein the polytriacetlyene comprises alkyl side chains. 6 . The method of claim 5 , wherein the alkyl side chains have a chain length ranging from 1 to 30 carbons. 7 . The method of claim 5 , wherein the alkyl side chains are trans. 8 . The method of claim 5 , wherein the alkyl side chains are linear. 9 . The method of claim 1 , wherein the polytriacetylene comprises poly(undecyl triacetylene).
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Classifications
by pressure treatment during the growth · CPC title
Macromolecular compounds · CPC title
Characterised by the use of homopolymers or copolymers of compounds having one or more carbon-to-carbon triple bonds; Derivatives of such polymers · CPC title
- C08J3/24Primary
Crosslinking, e.g. vulcanising, of macromolecules (mechanical aspects B29C35/00; crosslinking agents C08K) · CPC title
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- What does patent US12570808B2 cover?
- Polytriacetylene, a unique conjugated polymer with all-carbon main-chains consisting of alternating double bonds and diacetylene units, can self-assemble into ordered structures under moderate pressures, driven by side-chain crystallization. At higher pressure, the polymer undergoes topochemical cross-linking reactions, resulting in insoluble materials with graphyne-like structural and property…
- Who is the assignee on this patent?
- Nat Tech & Eng Solutions Sandia Llc, Unm Rainforest Innovations
- What technology area does this patent fall under?
- Primary CPC classification C08J3/24. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 10 2026 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).