Using vinylphosphonic acid for the preparation of biodegradable copolymers and their use in the exploration and exploitation of oil and natural gas

摘要

Use of vinylphosphonic acid or a salt thereof as a monomer in an amount of 0.5 to 25% by weight, referidoal weight of the mixed polymer, to improve the biodegradability of mixed polymers were obtained mediantecopolimerización in the radicals of the compounds of formulas (1), (3), (4), (5) and vinylphosphonic acid or sussales, and 75 to 99.5% by weight, based on the weight of the mixed polymer, monomer selected from the group consistenteen compounds of formula ( 1) wherein R1 and R2, independently of one another are hydrogen or C1-C4 alkyl, wherein n represents 3, 4 or 5, and the formula (5) wherein X represents OH or represents NR3R4, and R3 and R4, independently of one another represent H or C1 to C4.