METHOD TO PRODUCE POLYACRYLAMIDE HYDROGEL Russian patent published in 2013 - IPC C08F2/10 C08F120/56 C08F20/56 

FIELD: biotechnologies.

SUBSTANCE: method is realised by polymerisation of an aqueous solution containing 7-15 wt % of acrylamide and 0.5-1.5 wt % of N,N'-methylenebisacrylamide, in presence of polymerisation initiator, besides, the polymerisation initiator is a mixture of 4,4'-azobis(4-cyanopentane acid) and ammonium salt of 4-8-dithiobenzoate of 4-cyanopentane acid with their content in the aqueous solution as 0.03-0.07 wt % and 0.07-0.35 wt %, accordingly, and polymerisation is performed at temperature of 70-80°C and pH 3.0-4.0.

EFFECT: increased structural homogeneity of a hydrogel.

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