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α-甲氧羰基二氟乙酰氟 FCOCF_2CO_2CH_3(1)及3,3,3-三氯二氟丙酰氟Cd_3CF_2COF(2)是合成含羧酸前体的全氟烯醚的重要原料。全氟烷基乙烯基醚 CF_2=CFOR_f 与四氟乙烯共聚得到的共聚物,具有聚四氟乙烯的化学稳定性,又能克服聚四氟乙烯难以加工的缺点。近二十年来,由于发现在全氟聚合物的主链上引入带功能团的侧链后,可以使其在保持氟碳链优点的同时,又具有某些特殊功能,如化学催化、离子交换与选择透过性、电荷传递等能力,因此合成带各种功能团的全氟烷基乙烯基醚,作为全氟功能高分子的共聚单体,是一个有趣的课题。
α-Methoxycarbonyldifluoroacetyl fluoride FCOCF_2CO_2CH_3 (1) and 3,3,3-trichlorodifluoro-propionyl fluoride Cd_3CF_2COF (2) are important raw materials for the synthesis of perfluoroalkenes containing carboxylic acid precursors. Copolymers of perfluoroalkyl vinyl ether CF_2 = CFOR_f copolymerized with tetrafluoroethylene have the chemical stability of polytetrafluoroethylene and overcome the disadvantages that polytetrafluoroethylene is difficult to process. In recent two decades, the introduction of functional group side chains into the main chain of perfluoropolymers has been found to have some special functions, such as chemical catalysis, ion exchange And the choice of permeability, charge transfer and other capabilities, the synthesis of various functional groups with perfluoroalkyl vinyl ether, as perfluoro functional polymer comonomer, is an interesting topic.