申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0070635A2
公开(公告)日:1983-01-26
β-Substituted polyfluoropropionate salts of the formula:
wherein
X is -CN, -N3, -SR, -SO2R or -PO(OR')2;
R is C1-10 alkyl, aryl or alkaryl having no more than 10 carbon atoms;
R' is -CH3, -C2H5, -CH2CF3 or -CH2CF2CF2H;
Y is -Cl, -F, -Sr or -ORF except that when X is -CN, Y is -Cl, -F or -Br;
RF is perfluoroalkyl, branched or linear, having 1 to 10 carbon atoms or such perfluoroalkyl having one or more carbon-carton links Interrupted by ether oxygen;
M is alkali metal, alkaline earth metal or -NR1R2R3R4, wherein R1-R4 are, independently, C1-6 linear alkyl, allyl or benzyl; and
n is the valence of M and is 1 or 2 can be used to prepare such derivatives as substituted fluorocarbons and copolymers having pendant groups that can be converted into ion-exchange groups. The salts can be prepared by reaction of a fluoroolefin CF2= CFY a salt MXn and CO2.
式中β-取代的多氟丙酸盐:
其中
X是-CN、-N3、-SR、-SO2R或-PO(OR')2;
R 是碳原子数不超过 10 个的 C1-10 烷基、芳基或烷芳基;
R'是-CH3、-C2H5、-CH2CF3 或 -CH2CF2CF2H;
Y是-Cl、-F、-Sr或-ORF,但当X是-CN时,Y是-Cl、-F或-Br;
RF 是具有 1 至 10 个碳原子的支链或直链全氟烷基,或具有一个或多个被醚氧打断的碳碳原子链节的全氟烷基;
M 是碱金属、碱土金属或-NR1R2R3R4,其中 R1-R4 独立地为 C1-6 直链烷基、烯丙基或苄基;以及
n 是 M 的化合价,为 1 或 2,可用于制备取代碳氟化合物和共聚物等衍生物,这些衍生物具有可转化为离子交换基团的悬垂基团。这些盐可以通过氟烯烃 CF2= CFY 盐 MXn 和 CO2 的反应来制备。