{HEAD ~ The present invention} is directed to {TAIL ~ a method} of producing a fluoropolymer which comprises polymerizing a radical polymerizable monomer in a defined reaction field, said radical polymerizable monomer comprising a fluorine containing ethylenic monomer and said defined reaction field being in supercriticality expression state with a monomer density monomer critical density ratio of not less than 1.1 
{ HEAD ~ The present invention } is directed to { TAIL ~ a method } of producing a fluoropolymer which comprises polymerizing a radical polymerizable monomer in a defined reaction field , said radical polymerizable monomer comprising a fluorine containing ethylenic monomer and said defined reaction field being in supercriticality expression state with a monomer density monomer critical density ratio of not less than 1.1
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