Fluorinated ion exchange polymer containing carboxylic groups, process
for making same, and film and membrane thereof
    42.
    发明授权
    Fluorinated ion exchange polymer containing carboxylic groups, process for making same, and film and membrane thereof 失效
    含有羧基的氟化离子交换聚合物,其制备方法,以及其膜和膜

    公开(公告)号:US4267364A

    公开(公告)日:1981-05-12

    申请号:US959839

    申请日:1978-11-13

    IPC分类号: C08F8/06 C08J5/22 B01D13/04

    摘要: Fluorinated ion exchange polymers which have pendant side chains which contain --OCF.sub.2 COOR groups, or which have both pendant side chains containing carboxylic groups and pendant side chains which contain sulfonyl groups, when used in the form of membranes to separate the anode and cathode compartments of an electrolysis cell, permit operation at high current efficiency. Those containing both carboxylic and sulfonyl groups can be made by oxidation of fluorinated polymers which have pendant side chains containing sulfinic groups, or both sulfinic and sulfonyl groups. The fluorinated polymers which have pendant side chains containing sulfinic groups, or both sulfinic and sulfonyl groups, are in turn made from fluorinated polymers which have pendant side chains containing sulfonyl halide groups by reduction with, for example, hydrazine. Those polymers which have only pendant side chains which contain --OCF.sub.2 COOR groups can be made by copolymerization of a mixture of monomers, one of which is a vinyl monomer which contains the indicated carboxylic group.Fluorinated ion exchange polymers which have pendant side chains containing --OCF.sub.2 COOR groups and also pendant side chains which contain sulfonyl groups can also be made by copolymerization of a mixture of monomers, one of which is a vinyl monomer which contains the indicated carboxylic group; and also by treatment of a polymer which contains --OCF.sub.2 CF.sub.2 SO.sub.3 H or salts thereof with a combination of fluorine and oxygen.

    摘要翻译: 当以膜的形式使用含有-OCF 2 COOR基团的侧链或具有含羧基的侧链和含有磺酰基的侧链的侧链的氟化离子交换聚合物将阳极和阴极隔室分离 电解槽,允许高电流效率运行。 含有羧基和磺酰基的那些可以通过氟化聚合物的氧化来制备,所述氟化聚合物具有侧链,其含有亚磺酰基,或亚磺酰基和磺酰基。 具有亚磺酸基侧链或亚磺酰基基团的侧链的氟化聚合物又由具有例如肼还原的具有磺酰卤基团侧链的氟化聚合物制成。 仅具有含有-OCF 2 COOR基团的侧链侧链的那些聚合物可以通过单体混合物共聚来制备,其中一种是含有指定羧基的乙烯基单体。 具有含有-OCF 2 COOR基团的侧面侧链和含有磺酰基的侧链的氟化离子交换聚合物也可以通过使单体混合物共聚来制备,其中一种是含有指定羧基的乙烯基单体; 并且还通过处理含有-OCF 2 CF 2 SO 3 H的聚合物或其盐与氟和氧的组合。

    Polymers, containing a fluorocyclobutyl ring and their preparation
    47.
    发明授权
    Polymers, containing a fluorocyclobutyl ring and their preparation 失效
    含有氟环丁基环的聚合物及其制备方法

    公开(公告)号:US06620899B1

    公开(公告)日:2003-09-16

    申请号:US09807253

    申请日:2001-04-09

    IPC分类号: C08F13004

    摘要: This invention pertains to olefins having a terminally disposed fluorocyclobutyl ring bearing a sulfonyl, sulfonic acid or sulfonate salt, a process for the production thereof, and polymers, especially ionomers, formed therefrom. The invention further pertains to ionically conductive compositions formed by the combination of a liquid and the ionomer of the invention, and electrochemical devices such as electrodes, sensors, and solid polymer electrolytes comprising those conductive compositions. The polymers of the invention arc useful in the formation of films and coatings with high chemical resistance and good physical properties. The ionomers of the invention are useful in electrochemical applications, particularly in lithium batteries. The polymeric compositions of the invention are useful for strong acid catalysis, such as Friedel-Crafts alkylation.

    摘要翻译: 本发明涉及具有末端设置的含有磺酰基,磺酸或磺酸盐的氟代环丁基环的烯烃,其制备方法和由其形成的聚合物,特别是离聚物。 本发明还涉及通过液体和本发明的离子交联聚合物的组合形成的离子导电组合物,以及包括这些导电组合物的电化学装置,例如电极,传感器和固体聚合物电解质。 本发明的聚合物可用于形成具有高耐化学性和良好物理性能的膜和涂料。 本发明的离聚物可用于电化学应用,特别是在锂电池中。 本发明的聚合物组合物可用于强酸催化,例如Friedel-Crafts烷基化。

    Producing CF.sub.3 CH.sub.2 CF.sub.3 and/or CF.sub.3 CH.dbd.CF.sub.2 by
the conversion of alpha-hydroperfluoroisobutyric acid compounds
    48.
    发明授权
    Producing CF.sub.3 CH.sub.2 CF.sub.3 and/or CF.sub.3 CH.dbd.CF.sub.2 by the conversion of alpha-hydroperfluoroisobutyric acid compounds 失效
    通过α-氢全氟异丁酸化合物的转化制备CF 3 CH 2 CF 3和/或CF 3 CH = CF 2

    公开(公告)号:US5594159A

    公开(公告)日:1997-01-14

    申请号:US421095

    申请日:1995-04-13

    摘要: A process is disclosed for producing 1,1,1,3,3,3-hexafluoropropane and/or 1,1,1,3,3-pentafluoropropene from (CF.sub.3).sub.2 CHCOOH and/or its water soluble salts. The process involves providing a mixture containing water and such carboxy compound(s) which has a pH of less than about 4, and reacting the mixture at a temperature of at least about 75.degree. C. Certain ether compounds may be included in the mixture along with (CF.sub.3)2 CHCOOH and/or its water soluble salts. The reaction of the carboxy (and optionally ether) compound(s) with water may be employed in connection with a process for producing tetrafluoroethylene and/or hexafluoropropylene by pyrolysis, where by-product perfluoroisobutylene is reacted with water (and optionally an alkanol) to produce (CF.sub.3).sub.2 CHCOOH (and optionally one or more ether compounds).

    摘要翻译: 公开了从(CF 3)2 CHCOOH和/或其水溶性盐制备1,1,1,3,3,3-六氟丙烷和/或1,1,1,3,3-五氟丙烯的方法。 该方法包括提供含有水的混合物和pH小于约4的羧基化合物,并在至少约75℃的温度下使该混合物反应。某些醚化合物可以包含在混合物中 与(CF 3)2 CHCOOH和/或其水溶性盐。 羧基(和任选的醚)化合物与水的反应可用于通过热解制备四氟乙烯和/或六氟丙烯的方法,其中副产物全氟异丁烯与水(和任选的烷醇)反应生成 产生(CF 3)2 CHCOOH(和任选的一种或多种醚化合物)。