摘要:
A useful fluorinated polymer as a material for pellicle or the like, which exhibits high durability and transparency to short-wavelength light (ArF excimer laser of 193 nm oscillation wavelength or F2 excimer laser of 157 nm oscillation wavelength). There is provided a pellicle wherein the polymer (I) for use in pellicle film and/or adhesive therefor consists of one essentially having the following unit (1). The unit (1) is one wherein a fluorinated chain constituting a polymer main chain consists of carbon atoms and ether oxygen atoms, and wherein at least one of the main chain constituting carbon atoms is one constituting a cyclic group while at least one of the main chain constituting ether oxygen atoms is one not constituting a cyclic group. For example, the unit (1) is one of the following formula (A1): (A1) (wherein n is 1 or 2; RF1 is -F or -CF3; and RF2 is -F or a C1-C5 perfluoroalkyl).
摘要:
To provide a curable fluorinated polymer which is excellent in curability, and a fluorinated polymer cured product which is excellent in heat resistance and chemical resistance and which exhibits excellent properties as an elastomer. A curable fluorinated polymer having constituent units (A) based on fluoromonoenes (a) and constituent units (B) based on a non-cyclopolymerizable fluorodiene (b), in which the content of polymerizable double bonds is from 0.01 to 0.5 mmol/g, and of which the intrinsic viscosity is from 0.1 to 1 dL/g, and a fluorinated polymer cured product obtained by curing the curable fluorinated polymer in the presence of an organic peroxide.
摘要:
To provide a crosslinkable fluorinated elastomer composition which is excellent in crosslinking reactivity and of which a crosslinked product is excellent in heat resistance and chemical resistance. The crosslinkable fluorinated elastomer composition comprises a fluorinated elastomer (e.g. a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer) and an aromatic compound having at least two crosslinkable unsaturated double bonds (e.g. a compound represented by the formula (A-1)), and the crosslinked product is one obtained by crosslinking the crosslinkable fluorinated elastomer composition.
摘要:
To provide a novel fluorinated aromatic compound having at least two carbon-carbon unsaturated bonds, a method for its production, a curable material comprising the fluorinated aromatic compound, a cured product thereof, and an optical member. The fluorinated aromatic compound is represented by formula (A), wherein n is an integer of 0 to 6, a is an integer of 0 to 5, b is an integer of 0 to 4, c is an integer of 0 to 4, a+c+n is 2 to 6, a+b is 2 to 9, Z is a single bond, -0-, -S-, -CO-, -C(CH 3 ) 2 -, -C(CF 3 ) 2 -, -SO-, or -SO 2 -, Rf 1 is a C 1-8 fluoroalkyl group, Y 1 and Y 2 are each independently a group represented by formula (1) (s is 0 or 1, and R 1 , R 2 , R 3 , and R 4 are each independently a hydrogen atom or a fluorine atom), and F in the aromatic ring indicates that hydrogen atoms in the aromatic ring are all substituted by fluorine atoms.