abstract |
Provided is a fluorine-containing copolymer that contains tetrafluoroethylene units, hexafluoropropylene units, and perfluoro(propyl vinyl ether) units. The content of the hexafluoropropylene units is 9.5-11.6 mass% with respect to the total of the monomer units. The content of the perfluoro(propyl vinyl ether) units is 1.2-2.9 mass% with respect to the total of the monomer units. The melt flow rate at 372°C is 19.0-28.0 g/10 minutes. Also, the total number of -CF 2 H, carbonyl group-containing terminal groups, -CF=CF 2 , and -CH 2 OH is at most 90 per 10 6 main chain carbon atoms. |