ACRYLATE-TYPE POLYMER PRODUCTION PROCESS Russian patent published in 2007 - IPC C08F2/48 C08F2/50 

FIELD: polymer production.

SUBSTANCE: invention is directed to production of water-soluble polymers or water-swellable hydrogels, detergents, and various composites based thereon, as well as to preparation of novel therapeutical forms. Acrylate-type polymer are obtained via light-induced polymerization of acrylate monomers in presence of metal-free porphyrins and accurately dosed quantities of molecular oxygen under irradiation by visible light within wavelength range 400-700 nm. Distinguishing feature of such a polymerization resides in high oxygen-sensitivity and concentration of porphyrin, by variation of which one can vary polymer characteristics within a wide range and. in case of acrylic acids, additionally structurize polyelectrolytes based thereon resulting in hydrogels showing different degrees of swelling in water.

EFFECT: simplified process, reduced consumption of photoinitiator, enabled polymerization of acrylic monomers in absence of their alkyl-substituted derivatives, and enabled carrying out process in bulk, in solution, or in emulsion.

6 cl, 1 tbl, 7 ex