A fluorine-containing copolymer, which comprises a hydroxyl-terminated fluorine-containing vinyl ether, represented by the following general formula :
CF2=CFORfCH2OH
(where Rf is a fluoroalkylene group, a fluoroalkyl ether group, or a fluoroalkoxyfluoroalkyl ether group, having 1-25 carbon atoms), and at least one of other fluorine-containing unsaturated monomers, where a high-molecular weight fluorine-containing copolymer having a melt viscosity (230°C) of 0.1-100g/10min. is insoluble in a solvent, and can be used suitably for melt molding, whereas a low-molecular weight fluorine-containing copolymer having a glass transition temperature Tg of 20°C, or higher, and a number average molecular weight Mn of 1,000, or more is soluble in a solvent, and can be used suitably for coating agents, etc. The fluorine-containing copolymer has a high light transmissivity, and a low refractive index, and also has, as such, a good adhesiveness to various substrated without any surface treatment, any adhesives, or the like.
一种含
氟共聚物,由羟基封端的含
氟乙烯基醚组成,通式如下: :
CF2=CFORfCH2OH
(其中 Rf 为具有 1-25 个碳原子的
氟亚烃基团、氟烷基醚基团或氟烷氧基氟烷基醚基团),以及至少一种其他含
氟不饱和单体,其中高分子量含
氟共聚物的熔融粘度(230°C)为 0.1-100g/10min.而
玻璃化温度 Tg 为 20°C 或更高,平均分子量 Mn 为 1,000 或更高的低分子量含
氟共聚物可溶于溶剂,可用于涂层剂等。含
氟共聚物具有高透光率和低折射率,因此对各种基材具有良好的粘合性,无需任何表面处理或粘合剂等。