Crosslinked polymer
    111.
    发明申请
    Crosslinked polymer 有权
    交联聚合物

    公开(公告)号:US20050131096A1

    公开(公告)日:2005-06-16

    申请号:US10730238

    申请日:2003-12-08

    CPC classification number: C08J5/225 C08J3/24 C08J2327/12

    Abstract: A method is provided for obtaining crosslinked polymers, particularly fluorinated polymers having pendent sulfonic acid groups, by crosslinking through pendent groups which include a sulfonyl chloride group (—SO2Cl). The sulfonyl chloride group may be removed by application of electromagnetic radiation, typically in the ultraviolet band, or a radical initiator, leaving behind a radical which readily binds covalently to other polymer strands or to crosslinking agents to form crosslinks. Typically, the polymer is made by providing a polymer comprising pendent groups which include a group according to the formula —SO2F and converting at least a portion of the —SO2F groups to —SO2Cl. After crosslinking, the remaining —SO2F groups may be converted to sulfonic acid groups, yielding a crosslinked polymer electrolyte. Such crosslinked polymer electrolytes may be used to make polymer electrolyte membranes (PEM's) that may be used in electrolytic cells such as fuel cells.

    Abstract translation: 提供一种用于获得交联聚合物,特别是具有侧链磺酸基的氟化聚合物的方法,通过通过包括磺酰氯基团(-SO 2 Cl)的侧基进行交联。 可以通过施加通常在紫外线带中的电磁辐射或自由基引发剂来除去磺酰氯基团,留下易于与其它聚合物链或交联剂共价结合以形成交联的基团。 通常,通过提供包含侧基的聚合物制备聚合物,所述侧基包括根据式-SO 2 F的基团,并将至少一部分-SO 2 F基团取代-SO 2 Cl。 交联后,剩余的-SO 2 F基团可以转化为磺酸基团,得到交联聚合物电解质。 这种交联聚合物电解质可用于制备可用于电解池如燃料电池的聚合物电解质膜(PEM)。

    Fluoropolymer bonding composition and method
    114.
    发明授权
    Fluoropolymer bonding composition and method 失效
    含氟聚合物粘合剂组合物和方法

    公开(公告)号:US06685793B2

    公开(公告)日:2004-02-03

    申请号:US09862125

    申请日:2001-05-21

    Applicant: Naiyong Jing

    Inventor: Naiyong Jing

    Abstract: A multi-layer structure includes a layer of a fluoropolymer bonded to a substrate. The structure is prepared by exposing a bonding composition to actinic radiation, such as ultraviolet radiation, to form the bond. The bonding composition includes a light-absorbing electron donor.

    Abstract translation: 多层结构包括与基底结合的氟聚合物层。 通过将结合组合物暴露于光化辐射如紫外线辐射来形成结构来制备结构。 粘合组合物包括光吸收电子给体。

    Acid functional fluoropolymer membranes and method of manufacture
    115.
    发明授权
    Acid functional fluoropolymer membranes and method of manufacture 失效
    酸官能含氟聚合物膜及其制造方法

    公开(公告)号:US06423784B1

    公开(公告)日:2002-07-23

    申请号:US09464337

    申请日:1999-12-15

    Abstract: Methods are provided to make acid functional fluoropolymers by: a) dehydrofluorinating a starting fluoropolymer with a dehydrofluorinating agent to form an unsaturated fluoropolymer; b) adding an acidifiable nucleophilic functionalizing agent to a double bond of the unsaturated fluoropolymer; and c) acidifying the added acidifiable function. Acid functional fluoropolymers and ion conducting membranes thereof are also provided, including acid functional fluoropolymer having pendent groups according to the formula: —X—Ar—An, wherein X is selected from O, S or NR, where R is selected from H and C1-C30 alkyl or aryl, which are optionally substituted, wherein Ar is a C6-C30 aromatic group, which is optionally substituted, wherein A is an acidic function or salt thereof, wherein a can be independently chosen to be 1, 2 or 3.

    Abstract translation: 提供通过以下方式制备酸官能含氟聚合物的方法:a)用脱氟化氢剂使起始含氟聚合物脱氟化氢以形成不饱和含氟聚合物; b)将可酸化的亲核官能化剂加入到不饱和含氟聚合物的双键中; 和c)酸化所添加的酸化功能。 还提供了酸官能含氟聚合物及其离子传导膜,包括具有根据下式的侧基的酸官能含氟聚合物:-X-Ar-An,其中X选自O,S或NR,其中R选自H和C1 -C 30烷基或芳基,其任选被取代,其中Ar是任选取代的C 6 -C 30芳族基团,其中A是酸性官能团或其盐,其中a可以独立地选择为1,2或3。

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