FIELD: chemistry.
SUBSTANCE: invention relates to methods of producing arabinogalactan-based sulphated biopolymers. The method involves reaction of arabinogalactan with a sulphating SO3-pyridine complex while continuously stirring and heating, and separating the product. The arabinogalactan first undergoes mechanochemical treatment in pyridine with ratio of the mass of arabinogalactan to the volume of pyridine equal to 1:10 for 10 minutes. Sulphation is carried out at temperature 50-55°C for 40-60 minutes. The product is separated by neutralising with aqueous solution of an alkali and then precipitated in ethyl alcohol.
EFFECT: invention increases efficiency of sulphation process, cut its duration and reduce reaction temperature.
5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR SULPHATING LARCH WOOD ARABINOGALACTAN WITH SULFAMIC ACID | 2021 |
|
RU2760432C1 |
| METHOD OF PRODUCING SULPHATED ARABINOGALACTAN DERIVATIVES | 2013 |
|
RU2521649C1 |
| METHOD OF OBTAINING SULPHATED DERIVATIVES OF ARABINOGALACTAN | 2014 |
|
RU2546965C1 |
| METHOD FOR PREPARING SULFATED DERIVATIVES OF ARABINOGALACTAN POSSESSING ANTICOAGULATING AND HYPOLIPIDEMIC ACTIVITY | 2007 |
|
RU2319707C1 |
| METHOD OF OBTAINING SULPHATED DERIVATIVES OF ARABINOGALACTAN, POSSESSING ANTICOAGULANT AND HYPOLIPIDEMIC ACTIVITY | 2013 |
|
RU2532915C1 |
| METHOD FOR ORGANOSOLVENT LIGNIN SULFATION | 2017 |
|
RU2641758C1 |
| METHOD FOR SULFATION OF GALACTOGLUCOMANNAN IN PINE WOOD WITH SULFAMIC ACID | 2022 |
|
RU2787219C1 |
| MICROCRYSTALLINE CELLULOSE SULPHATION METHOD | 2014 |
|
RU2558885C1 |
| MICROCRYSTALLINE CELLULOSE SULPHATION METHOD | 2009 |
|
RU2404994C1 |
| METHOD OF SULPHATION ORGANOSOLVENT LIGNIN | 2018 |
|
RU2665576C1 |
