FIELD: organic chemistry. SUBSTANCE: method involves swelling of narrow-dispersed particles of chitosan fraction, the process is carried out in highly polar solvent in acid medium. If it is necessary then suitable reagent is added. Proposed method is used for production derivatives of chitosan, e. g. , salts, N-acyl derivatives and derivatives of chitosan having decreased molecular weight which is carried out in heterogeneous medium. EFFECT: simplified process for production of chitosan, particularly, simplified isolation of chitosan derivatives; significantly decreased amount of solvent being used; decreased volume of devices being used. 2 cl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING CHITOSONIUM GLUTAMATE (VERSIONS) | 1997 |
|
RU2124524C1 |
| METHOD FOR PRODUCTION OF HYDROGEL-FORMING AGENT OF CHITOSAN | 1996 |
|
RU2099352C1 |
| RADIONUCLIDE FLOCCULATOR FOR DECONTAMINATING LIQUID RADIOACTIVE WASTES | 1997 |
|
RU2110858C1 |
| METHOD FOR PREPARING WATER-SOLUBLE DERIVATIVES OF CHITOSAN | 2004 |
|
RU2263681C1 |
| METHOD OF SYNTHESIS OF N-ITACONOYLCHITOSAN | 1997 |
|
RU2123500C1 |
| SOLUTION FOR PREPARING CHITOSAN MATERIAL, METHOD FOR PREPARING HAEMOSTATIC MATERIAL OF THIS SOLUTION (VERSIONS) AND MEDICAL DEVICE WITH USING CHITOSAN FIBRES | 2011 |
|
RU2487701C2 |
| METHOD FOR FORMING CHITOSAN FILM COATING AND CHITOSAN FILM COATING | 2010 |
|
RU2461575C2 |
| METHOD OF PRODUCING CARBOXYMETHYLCHITIN-GLUCAN COMPLEX | 2023 |
|
RU2822043C1 |
| METHOD OF PRODUCING CONJUGATE OF NONA-β-(1→3)-GLUCOSIDE WITH BOVINE SERUM ALBUMIN USING SQUARATE TECHNIQUE | 2011 |
|
RU2476444C1 |
| WATER-SOLUBLE MONO-PEGYLATED TETRAPYRROLE DERIVATIVES FOR PHOTODYNAMIC THERAPY AND METHOD OF OBTAINING THEM | 2004 |
|
RU2382787C2 |
