| abstract |
(57) [Problem] To provide an antireflection optical thin film excellent in abrasion resistance which can be easily produced, an antireflection article using the same, and a novel fluorine-containing compound which can be used as a raw material thereof. provide. The novel fluorine-containing compound has a general formula of CH2 = CH-O- (CH2) aO- (CH2) b-Rf- (CH2) bO- (CH2) aO-CH = C A compound having two or more unsaturated double bonds represented by H2 (wherein, Rf is a fluorine-containing alkyl group, a is an integer of 1 to 2, and b is an integer of 0 to 3), and includes this fluorine-containing compound. The polymer made of the composition is used as an optical thin film, and further, it is used as an antireflective article material. |