摘要 |
The present invention provides a fluoropolymer having excellent mechanical strength and transparency, having a high glass transition point suitable for high-temperature use, and having a high refractive index. The present invention provides a novel compound represented by the following formula (1) and a fluoropolymer comprising monomer unit (2) formed by the polymerization of such a compound. R<SUP>AF</SUP>, R<SUP>BF</SUP>, R<SUP>CF</SUP>, R<SUP>DF</SUP>: each independently is a fluorine atom, a chlorine atom, a perfluoro monovalent saturated hydrocarbon group or a perfluoro(partially chlorinated monovalent saturated hydrocarbon) group, provided that at least one of R<SUP>AF</SUP>, R<SUP>BF</SUP>, R<SUP>CF </SUP>and R<SUP>DF </SUP>is a perfluoro(partially chlorinated monovalent saturated hydrocarbon) group.
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