Solid or gel polymers containing a plurality of free hydrazone groups
US4076913A · kind A · utility
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8Claims
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Key dates
| Filing date | Sep 27, 1976 |
| Grant date | Feb 28, 1978 |
| Priority date | — |
| Expiry date | Sep 27, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel polymers are provided which carry diazomethylene or hydrazonomethylene groups. Such polymers are of special use in immobilizing carboxylic acids, such as amino acids, with a view to subsequent chemical transformation of such acids, e.g. peptide synthesis. Alcohols and thiols may also be immobilized using the new polymers. Methods for the preparation of the polymers are provided, starting from a variety of polymer types.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.