In　order　to　improve　the　adhesion　of　aromatic　fluorocarbon　coatings,　tetraallyl　biphenyl　diphenol(TABP),　bisphenol　A　and　decafluorobiphenyl　were　used　as　starting　materials　to　prepare　fluorinated　poly(arylene　ether)s(FPAEs)　through　room　temperature　polycondensation.　After　that,　3-mercaptopropionic　acid　was　grafted　to　achieve　carboxylated　fluorinated　poly(arylene　ether)s(CFPAEs).　The　carboxyl　content　of　the　products　was　adjusted　by　changing　the　loading　amount　of　TABP.　The　CFPAE　coatings　were　prepared　by　spraying　the　polymer　solutions　in　1-methyl-2-pyrrolidinone(NMP)　onto　tinplate.　It　has　been　found　that　the　CFPAE　coatings　have　excellent　thermal　stability　and　mechanical　strength.　The　introduction　of　carboxyl　groups　could　significantly　improve　the　adhesion　of　the　fluorocarbon　coating.　When　the　carboxyl　content　is　0.265　mmol/g,　the　adhesion　level　of　the　coating　is　0,　the　pencil　hardness　is　6H,　the　minimum　shaft　rod　diameter　without　coating　damage　is　0.5　mm,　and　the　water　contact　angle　is　103.9°.　In　addition,　the　CFPAE　coatings　also　have　excellent　acid　resistance,　salt　resistance,　anti-ultraviolet　aging　and　anti-corrosion　properties.　Therefore,　the　carboxylation　is　an　effective　way　to　expand　the　application　of　fluorinated　poly(arylene　ether)s　to　aromatic　fluorocarbon　coatings.　©　2022,　Editorial　Department　of　Chem.　J.　Chinese　Universities.　All　right　reserved.