Porous/nanoporous pht
US-2017114186-A1 · Apr 27, 2017 · US
Porous/nanoporous pht
US2016108175A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016108175-A1 |
| Application number | US-201414564650-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 9, 2014 |
| Priority date | Oct 16, 2014 |
| Publication date | Apr 21, 2016 |
| Grant date | — |
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- Title
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Abstract
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Methods of forming nanoporous materials are described herein that include forming a polymer network with a chemically removable portion. The chemically removable portion may be polycarbonate polymer that is removable on application of heat or exposure to a base, or a polyhexahydrotriazine (PHT) or polyhemiaminal (PHA) polymer that is removable on exposure to an acid. The method generally includes forming a reaction mixture comprising a formaldehyde, a solvent, a primary aromatic diamine, and a diamine having a primary amino group and a secondary amino group, the secondary amino group having a base-reactive substituent, and heating the reaction mixture to a temperature of between about 50 deg C. and about 150 deg C. to form a polymer. Removing any portion of the polymer results in formation of nanoscopic pores as polymer chains are decomposed, leaving pores in the polymer matrix.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method of making a material, comprising: forming a reaction mixture comprising a formaldehyde, a solvent, a primary aromatic diamine, and a diamine having a primary amino group and a secondary amino group, the secondary amino group having a base-reactive substituent; and heating the reaction mixture to a temperature of between about 50 deg C. and about 150 deg C. to form a polymer. 2 . The method of claim 1 , wherein the diamine having the primary amino group and the secondary amino group is formed by reacting a primary diamine with an alkylene carbonate. 3 . The method of claim 1 , wherein the base-reactive substituent is a polycarbonate or polyester oligomer. 4 . The method of claim 1 , further comprising heating the polymer to a temperature between about 200 deg C. and about 300 deg C. to form a porous polymer. 5 . The method of claim 1 , wherein the diamine having the primary amino group and the secondary amino group is a linear polymer or a star polymer. 6 . The method of claim 1 , wherein heating the polymer to a temperature between about 200 deg C. and about 300 deg C. forms a volatile organic gas, and further comprising removing the volatile organic gas. 7 . The method of claim 1 , further comprising exposing the polymer to a base. 8 . The method of claim 7 , further comprising heating the polymer to a temperature between about 200 deg C. and about 300 deg C.
Assignees
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Classifications
by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out · CPC title
- C08G73/065Primary
Preparatory processes · CPC title
with at least three nitrogen atoms in the ring · CPC title
Nanopores, i.e. the average diameter being smaller than 0,1 micrometer · CPC title
Use of fibrous compounding ingredients (C08J9/0076 takes precedence) · CPC title
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- What does patent US2016108175A1 cover?
- Methods of forming nanoporous materials are described herein that include forming a polymer network with a chemically removable portion. The chemically removable portion may be polycarbonate polymer that is removable on application of heat or exposure to a base, or a polyhexahydrotriazine (PHT) or polyhemiaminal (PHA) polymer that is removable on exposure to an acid. The method generally includ…
- Who is the assignee on this patent?
- IBM
- What technology area does this patent fall under?
- Primary CPC classification C08G73/065. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Apr 21 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).