METHOD FOR MANUFACTURING FLUORINE-CONTAINING CROSS-LINKED PRODUCT AND USE THEREOF

摘要

To provide a process for producing a fluorinated crosslinked product which is excellent in stability and produces less HF. A process for producing a fluorinated crosslinked product, which comprises irradiating a fluorinated polymer having a unit represented by the following formula (1), with active energy rays having a wavelength of from 150 to 300 nm:
wherein X 1 and X 2 are each independently a hydrogen atom or a fluorine atom, R f1 is a fluoroalkylene group or a fluoroalkylene group having at least two carbon atoms and an etheric oxygen atom between carbon-carbon atoms, Q 1 is a single bond or an etheric oxygen atom, and Z 1 is OH, OR 1 or NR 2 R 3 , wherein R 1 is an alkyl group, and R 2 and R 3 are each independently a hydrogen atom or an alkyl group.