Organoborane strategy for polymers bearing lactone, ester, and alcohol functionality
US-2023060178-A1 · Mar 2, 2023 · US
Organoborane polymers for tunable hydrophilicity and wettability
US11518830B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11518830-B2 |
| Application number | US-201816756613-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 16, 2018 |
| Priority date | Oct 16, 2017 |
| Publication date | Dec 6, 2022 |
| Grant date | Dec 6, 2022 |
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- Title
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Abstract
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Described herein are organoborane polymers and methods for the oxidation of these organoborane polymers to poly (vinyl alcohol) PVA. The organoborane polymers of the present invention respond to an external trigger by changing from a hydrophobic to a hydrophilic state.
First claim
Opening claim text (preview).
The invention claimed is: 1. An organoborane copolymer having a structure selected from the group comprising formula 3, 4, or 5 wherein n is an integer from 1 to 1000; wherein m is an integer from 1 to 1000; wherein R1 is selected from the group consisting of H, alkyl, alkenyl, alkynyl, aryl, arylalkyl, cycloalkyl, trialkylsilyl, and a halide group; R2, R3, R4, R5, R6, and R7 are selected from the group consisting of H, alkyl, alkenyl, alkynyl, aryl, arylalkyl, C3-12 cycloalkyl, trialkylsilyl, and a halide group; and R13 is selected from the group consisting of H, aryl, alkyl, carbonyl, CN, and a halide; and stereoisomers thereof; and wherein r indicates a random/statistical copolymer structure; b indicates a block copolymer structure; and Formula 5 is an alternating copolymer structure.
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Classifications
- C08F130/06Primary
containing boron · CPC title
containing boron · CPC title
using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent · CPC title
Use of a di- or tri-thiocarbonylthio compound, e.g. di- or tri-thioester, di- or tri-thiocarbamate, or a xanthate as chain transfer agent, e.g . Reversible Addition Fragmentation chain Transfer [RAFT] or Macromolecular Design via Interchange of Xanthates [MADIX] · CPC title
Styrene · CPC title
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- What does patent US11518830B2 cover?
- Described herein are organoborane polymers and methods for the oxidation of these organoborane polymers to poly (vinyl alcohol) PVA. The organoborane polymers of the present invention respond to an external trigger by changing from a hydrophobic to a hydrophilic state.
- Who is the assignee on this patent?
- Univ Johns Hopkins
- What technology area does this patent fall under?
- Primary CPC classification C08F130/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 06 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).