METHOD OF PRODUCING MACROPOROUS FORM-STABLE POLYMER HYDROGELS USING MICROWAVE RADIATION (EMBODIMENTS) Russian patent published in 2020 - IPC C08J3/28 C08J3/75 C08L39/00 C08K3/34 C08J9/14 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to hybrid organo-inorganic materials, specifically to versions of a method of producing a porous form-stable polymer hydrogel. In one embodiment, the hydrogel is obtained by sol-gel technology in the presence of a reaction mixture containing poly-N-vinylamide, tetraethoxysilane (TES), a basic catalyst and an organic solvent, followed by exposure of the above reaction mixture to microwave radiation (MWR). In another embodiment, the non-porous polymer hydrogel obtained by sol-gel technology in the presence of a reaction mixture containing poly-N-vinylamide, thermal power plant and the main catalyst is subjected to swelling in an organic solvent with subsequent exposure of the MWR to the swollen polymer hydrogel.

EFFECT: technical result is providing non-toxic porous form-stable polymer hydrogels based on poly-N-vinylamides, as well as maintaining porosity of said hydrogels during swelling and drying.

7 cl, 6 dwg, 7 ex