| 摘要 |
PCT No. PCT/EP91/01846 Sec. 371 Date Jun. 2, 1993 Sec. 102(e) Date Jun. 2, 1993 PCT Filed Sep. 9, 1991 PCT Pub. No. WO92/06122 PCT Pub. Date Apr. 16, 1992. <IMAGE> (I) Organophosphonic polymers of general formula (I) where Y is a methyl or ethyl group or hydrogen and Z is hydrogen, the ammonium group, an alcaline metal or an alcaline earth metal. A method for producing these polymers comprises three stages: production of a monomer by reacting a ketene with diethylphosphite in the presence of an acid catalyst; polymerization of the monomer in solution in a solvent by means of a free radical initiator; hydrolysis of the polymer obtained by means of a concentrated solution of inorganic or inorganic based acid. Aqueous solution of hydrogen peroxyde stabilized by means of said polymers. |
