Abstract
Dextran methacrylates were received by acylation of dextran with methacryloilchloride in the presence of tertiary amines in the DMF/LiCl solution. Degree of substitution (DS) of synthesized derivatives reached 1.8 methacrylic residues per glucopyranoside unit of dextran macromolecule. Dextran methacrylates, obtained in the presence of triethylamine , with DS over 0.5 were insoluble in water. Derivatives synthesized in the presence of pyridine were separated in the form of a stable water soluble complex with pyridine chloride. These complexes maintain their water solubility up to DS = 1.8. The structurization of synthesized dextran methacrylates in water solutions initiated by redox system (NH4)2S2O8- Et3N yields active hydrogels, containing residual double bonds.
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