| abstract |
A method for producing a high-purity fluoropolymer-containing composition is provided in which a composition including a fluoropolymer and a polymer (I) containing a polymerized unit (I) based on a monomer (I) represented by general formula (I) is subjected to a treatment with fluorine radicals to thereby obtain the high-purity fluoropolymer-containing composition.　Formula (I): CX 1 X 3 =CX 2 R(-CZ 1 Z 2 -A 0 ) m (In the formula, X 1 and X 3 are each independently F, Cl, H, or CF 3 ; X 2 is H, F, an alkyl group, or a fluoroalkyl group; A 0 is an anionic group; R is a linking group; Z 1 and Z 2 are each independently H, F, an alkyl group, or a fluoroalkyl group; and m is an integer of 1 or larger.) |