Techniques for the preparation of highly fluorinated polyethers
    6.
    发明授权
    Techniques for the preparation of highly fluorinated polyethers 失效
    制备高度氟化聚醚的技术

    公开(公告)号:US07049393B2

    公开(公告)日:2006-05-23

    申请号:US10481020

    申请日:2003-05-28

    IPC分类号: C08G59/06 C08F6/06

    摘要: A process for preparing a fluorinated poly(arylene ether) comprising the repeating unit: wherein n provides a molecular weight up to about 30,000 to 100,000, X represents one of following groups: none, ketone, sulfone, sulfide, ether, hexafluoroisopropylidene, αω-perfluoroalkylene, oxadiazole, and Y is 4,4′-(hexafluoroisopropylidene)-diphenyl, 4,4′-isopropylidene diphenyl, 3,3′-isopropylidene diphenyl, phenyl, or chlorinated phenol which process comprises reacting a bis(pentafluorophenyl) compound and a bisphenol or hydroquinone in the presence of a dehydrating agent and a polar aprotic solvent is disclosed. Polymers resulting from the process show good promise as new passive optic polymer waveguide materials.

    摘要翻译: 一种制备包含重复单元的氟化聚(亚芳基醚)的方法,其中n提供高达约30,000至100,000的分子量,X表示以下基团之一:无酮,砜,硫醚,醚,六氟异亚丙基, 全氟亚烷基,恶二唑和Y是4,4' - (六氟异亚丙基) - 二苯基,4,4'-异亚丙基二苯基,3,3'-异亚丙基二苯基,苯基或氯化苯酚,该方法包括使双(五氟苯基)化合物与 公开了在脱水剂和极性非质子溶剂存在下的双酚或氢醌。 由该方法得到的聚合物作为新的无源光纤聚合物波导材料表现出良好的希望。

    Fluorinated comb-shaped polymers
    9.
    发明授权
    Fluorinated comb-shaped polymers 有权
    氟化梳形聚合物

    公开(公告)号:US07541426B2

    公开(公告)日:2009-06-02

    申请号:US11441003

    申请日:2006-05-26

    IPC分类号: C08G73/24

    摘要: Fluorinated comb co-polymers have a main chain including a semi-rigid hydrophobic fluorinated poly(ether) backbone and comb segments in the form of flexible and monodisperse side chains that are more hydrophilic than the backbone. The side chains may be hydrophilic polymeric chains obtained from “living-type” polymerization, for example polymethacrylates, polyethylene oxides, polystyrenes. Hydrophilic functionality, for example, ionic groups may be selectively introduced onto the side chain post polymerization. The side chain may be sulfonated α-methyl polystyrene. Such polymers are useful in proton exchange membranes.

    摘要翻译: 氟化梳共聚物具有主链,其包括半刚性疏水性氟化聚(醚)主链和梳形链段,其形式为比主链更亲水的柔性和单分散侧链。 侧链可以是从“活性”聚合获得的亲水性聚合物链,例如聚甲基丙烯酸酯,聚环氧乙烷,聚苯乙烯。 亲水官能团,例如离子基团可以选择性地引入侧链后聚合。 侧链可以是磺化的α-甲基聚苯乙烯。 这种聚合物可用于质子交换膜。

    Fluorinated comb-shaped polymers
    10.
    发明申请

    公开(公告)号:US20060270822A1

    公开(公告)日:2006-11-30

    申请号:US11441003

    申请日:2006-05-26

    IPC分类号: C08G59/00

    摘要: Fluorinated comb co-polymers have a main chain including a semi-rigid hydrophobic fluorinated poly(ether) backbone and comb segments in the form of flexible and monodisperse side chains that are more hydrophilic than the backbone. The side chains may be hydrophilic polymeric chains obtained from “living-type” polymerization, for example polymethacrylates, polyethylene oxides, polystyrenes. Hydrophilic functionality, for example, ionic groups may be selectively introduced onto the side chain post polymerization. The side chain may be sulfonated α-methyl polystyrene. Such polymers are useful in proton exchange membranes.