Polyaniline membranes, uses, and methods thereto
US-10265662-B2 · Apr 23, 2019 · US
Process of forming an acid-doped pol y aniline solution
US11401388B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11401388-B2 |
| Application number | US-202016740628-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 13, 2020 |
| Priority date | Jan 14, 2019 |
| Publication date | Aug 2, 2022 |
| Grant date | Aug 2, 2022 |
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Abstract
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A method of forming an acid-doped polyaniline (emeraldine salt) (PANi-ES) solution including steps of: (i) mixing polyaniline (emeraldine base) (PANi-EB) with a PANi-EB solvent and a gel-inhibitor to form a gel-inhibited PANi-EB solution; (ii) removing the gel-inhibitor from the gel-inhibited PANi-EB solution to form a PANi-EB solution; and (iii) adding an acid dopant to the PANi-EB solution to form a PANi-ES solution.
First claim
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The invention claimed is: 1. A method of forming an acid-doped polyaniline (emeraldine salt) (PANi-ES) solution including steps of: (i) mixing polyaniline (emeraldine base) (PANi-EB) with a PANi-EB solvent and a gel-inhibitor to form a gel-inhibited PANi-EB solution; (ii) removing the gel-inhibitor from the gel-inhibited PANi-EB solution to form a PANi-EB solution; and (iii) adding an acid dopant to the PANi-EB solution to form a PANi-ES solution. 2. The method according to claim 1 , wherein the gel inhibitor has a basic pH. 3. The method according to claim 1 , wherein the gel-inhibitor has a lower boiling point to the PANi-EB solvent. 4. The method according to claim 1 , wherein the PANi-EB solvent is an aprotic solvent. 5. The method according to claim 1 , wherein the acid dopant is an organic acid. 6. The method according to claim 1 , wherein the PANi-ES solution has a concentration of at least 0.01 wt % PANi-ES. 7. The method according to claim 1 , wherein step (i) includes mixing PANi-EB with a PANi-EB solvent and a gel-inhibitor such that the PANi-EB solvent to gel-inhibitor ratio ranges from 1:1 to 1:20. 8. The method according to claim 1 , wherein step (i) includes a step of adding a carrier polymer. 9. The method according to claim 1 , wherein step (ii) includes removing the gel-inhibitor from the gel-inhibited PANi-EB solution by distillation. 10. The method according to claim 1 , wherein step (iii) includes adding an acid dopant to the PANi-EB solution such that the molecular ratio of PANi-EB to acid dopant ranges from 2:1 to 1:2. 11. The method according to claim 1 , including a step of adding an organic solvent to the PANi-ES solution. 12. The method according to claim 11 , the organic solvent is chlorinated.
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Classifications
- C08J3/212Primary
and solid additives · CPC title
Condensation or reaction polymers · CPC title
Polyamines · CPC title
from other polycondensation products · CPC title
comprising organic polymers · CPC title
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- What does patent US11401388B2 cover?
- A method of forming an acid-doped polyaniline (emeraldine salt) (PANi-ES) solution including steps of: (i) mixing polyaniline (emeraldine base) (PANi-EB) with a PANi-EB solvent and a gel-inhibitor to form a gel-inhibited PANi-EB solution; (ii) removing the gel-inhibitor from the gel-inhibited PANi-EB solution to form a PANi-EB solution; and (iii) adding an acid dopant to the PANi-EB solution to…
- Who is the assignee on this patent?
- Massachusetts Inst Technology, Univ Swinburne Technology, Swinburne UIniversity of Technolooy
- What technology area does this patent fall under?
- Primary CPC classification C08J3/212. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 02 2022 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).