METHOD OF PRODUCING FLUOROPOLYMER, FLUOROPOLYMER AND LIQUID AQUEOUS DISPERSION Russian patent published in 2024 - IPC C08F214/18 C08F238/00 C08L27/12 C08L49/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing a fluoropolymer, comprising polymerisation of a fluorine-containing monomer in the presence of compound (1), having a triple bond and an anionic hydrophilic group, and an aqueous medium, in which compound (1) is a compound of general formula (1): A¹-R¹-C≡CX¹, where A¹ is -COOM, -SO₃M, -OSO₃M, -B(OM)(OR²), -OB(OM)(OR²), -PO(OM)(OR²) or -OPO(OM)(OR²); M is H, metal atom, NR³₄, imidazolium optionally having a substitute, pyridinium optionally having a substitute, or phosphonium optionally having a substitute; R³ in each case is the same or different, and represents H or an organic group; R² is H, a metal atom, NR³₄, imidazolium, optionally having a substitute, pyridinium, optionally having a substitute, phosphonium, optionally having a substitute, or an alkynyl group; R¹ is a binding group; and X¹ is H, a hydrocarbon group or A¹, and the hydrocarbon group optionally has a halogen atom, an ether bond, an ester bond or an amide bond. Also described is a fluoropolymer containing a block based on compound (1), having a triple bond and an anionic hydrophilic group, and a fluorine-containing monomer block, in which compound (1) is a compound of general formula (1): A¹-R¹-C≡CX¹, where A¹ is -COOM, -SO₃M, -OSO₃M, -B(OM)(OR²), -OB(OM)(OR²), -PO(OM)(OR²) or -OPO(OM)(OR²); M is H, metal atom, NR³₄, imidazolium optionally having a substitute, pyridinium optionally having a substitute, or phosphonium optionally having a substitute; R³ in each case is the same or different, and represents H or an organic group; R² is H, a metal atom, NR³₄, imidazolium, optionally having a substitute, pyridinium, optionally having a substitute, phosphonium, optionally having a substitute, or an alkynyl group; R¹ is a binding group; and X¹ is H, a hydrocarbon group or A¹, and the hydrocarbon group optionally has a halogen atom, an ether bond, an ester bond or an amide bond. Described is an aqueous dispersion for producing a moulded article, containing said fluoropolymer, and an aqueous medium.

EFFECT: obtaining a novel fluoropolymer and an aqueous dispersion based thereon.

21 cl, 3 ex