ALLYL-BEARING FLUORINATED IONOMERS
    4.
    发明申请
    ALLYL-BEARING FLUORINATED IONOMERS 审中-公开
    ALLYL轴承氟化离子

    公开(公告)号:WO2014023611A1

    公开(公告)日:2014-02-13

    申请号:PCT/EP2013/065980

    申请日:2013-07-30

    摘要: The present invention provides a fluorinated ionomer [polymer (I)] comprising recurring units derived from at least the following monomers: (i) 5 to 50 % by weight of a fluorinated monomer [monomer (A)] containing at least one -SO 2 X functionality, preferably having the formula of CF 2 =CF-O-(CF 2 CF(CF 3 )O) m -(CF 2 ) n SO 2 X (I) wherein m is 0 or 1, n is an integer between 0-10, and X is selected from F, OH, and O - Me + , wherein Me + indicates an alkali metal ion or an ammonium cation of formula NR 4 + where each R independently represents a hydrogen atom or a monovalent organic radical selected from aliphatic radicals having from 1 to 8 carbon atoms and arylic or alicyclic radicals having from 3 to 8 carbon atoms; (ii) a non-functional fluorinated monomer [monomer (B)] having at least one ethylene unsaturation; and (iii) a fluorinated polyfunctional compound having the general formula: (CR 1 R 2 =CFCF 2 -O) a -R f -((O) c -CF=CR 3 R 4 ) b (ll) wherein: a is an integer equal to or larger than 1, preferably a is 1, 2, or 3; b is 0 or 1 and the sum of a and b is an integer equal to or larger than 2; c is 0 or 1; R 1 , R 2 , R 3 and R 4 are independently selected from F, H, alkyl, alkoxy, polyoxy alkyl, perfluoroalkyl, perfluoroalkoxy or perfluoropolyoxy alkyl, preferably F; and R f represents a hydrocarbon or fluorocarbon group having at least two carbon atoms. The low-EW perfluorinated ionomers made of polymer (I) are adapted to be processed into thin films, which are found to have superior physical stability than the existing products and are thus well suited for low humidity or high temperature electrochemical applications. Moreover, these low-EW ionomers are melt processable and have limited loss of volatile substances at their melt processing temperatures.

    摘要翻译: 本发明提供了含至少以下单体的重复单元的氟化离聚物[聚合物(I)]:(i)5-50重量%含有至少一个-SO 2 X官能团的氟化单体[单体(A)] 优选具有CF 2 = CF-O-(CF 2 CF(CF 3)O)m - (CF 2)n SO 2 X(I)的式(其中m为0或1),n为0-10之间的整数,X选自F ,OH和O-Me +,其中Me +表示式NR4 +的碱金属离子或铵阳离子,其中每个R独立地表示氢原子或选自具有1至8个碳原子的脂肪族基团的一价有机基团和芳基或 具有3至8个碳原子的脂环族基团; (ii)具有至少一个乙烯不饱和度的非官能的氟化单体[单体(B)]; 和(iii)具有以下通式的氟化多官能化合物:(CR 1 R 2 = CFCF 2 -O)a -R f - ((O)c -CF = CR 3 R 4)b(II)其中:a是等于或大于1的整数 优选a为1,2或3; b为0或1,a和b的和为等于或大于2的整数; c为0或1; R 1,R 2,R 3和R 4独立地选自F,H,烷基,烷氧基,聚氧烷基,全氟烷基,全氟烷氧基或全氟聚氧烷基,优选F; Rf表示具有至少2个碳原子的碳氢化合物或碳氟化合物。 由聚合物(I)制成的低EW全氟化离聚物适于加工成薄膜,发现它们比现有产品具有优异的物理稳定性,因此非常适合于低湿度或高温电化学应用。 此外,这些低EW离子聚合物是可熔融加工的,并且在其熔融加工温度下具有有限的挥发性物质损失。

    LIQUID COMPOSITIONS OF FLUORINATED ION EXCHANGE POLYMERS
    6.
    发明申请
    LIQUID COMPOSITIONS OF FLUORINATED ION EXCHANGE POLYMERS 审中-公开
    氟化离子交换聚合物的液体组合物

    公开(公告)号:WO2012069360A3

    公开(公告)日:2012-09-07

    申请号:PCT/EP2011070383

    申请日:2011-11-17

    IPC分类号: C08J3/09 C08F214/18 C08J5/22

    摘要: A liquid composition comprising at least one aprotic organic solvent and at least one fluorinated ion exchange polymer which consists of recurring units derived from a chlorofluoroolefin of formula CF2=CCIY, wherein Y is F or CI, and from at least one fluorinated functional monomer selected among those of formula CF2 =CF-O-(CF2CF(CF3)O)m-(CF2)nSO2X, wherein m is an integer equal to 0 or 1, n is an integer from 0 to 10 and X is chosen among halogens (CI, F, Br, I), -O-M+, wherein M+ is a cation selected among H+, NH4 +, K+, Li+, Na+, or mixtures thereof is disclosed. The liquid composition is suitable for the preparation of ion exchange membranes, in particular composite membranes, for use in fuel cell applications.

    摘要翻译: 包含至少一种非质子传递有机溶剂和至少一种氟化离子交换聚合物的液体组合物,所述氟化离子交换聚合物由衍生自式CF 2 = CClY的氯氟烯烃(其中Y为F或Cl)的重复单元和选自以下的至少一种氟化官能单体 式CF 2 = CF-O-(CF 2 CF(CF 3)O)m - (CF 2)n SO 2 X的那些,其中m是等于0或1的整数,n是0-10的整数,X选自卤素 ,F,Br,I),-O-M +,其中M +是选自H +,NH 4 +,K +,Li +,Na +或其混合物的阳离子。 该液体组合物适用于制备用于燃料电池应用的离子交换膜,特别是复合膜。

    固体高分子形燃料電池用固体高分子電解質膜および膜電極接合体
    9.
    发明申请
    固体高分子形燃料電池用固体高分子電解質膜および膜電極接合体 审中-公开
    聚合物电解质电池和膜电极组件固体聚合物电解质膜

    公开(公告)号:WO2008066048A1

    公开(公告)日:2008-06-05

    申请号:PCT/JP2007/072867

    申请日:2007-11-27

    摘要:  含フッ素ポリマーを含んでいるにも関わらず、湿潤状態における膨潤と乾燥状態における収縮とを繰り返しても破損しにくい固体分子形燃料電池用固体高分子電解質膜およびこれを用いた膜電極接合体を提供する。  温度80°C、変形速度1/分の条件にてJIS K 7161-1994に記載の引張試験法にしたがって得られた引張応力-ひずみ曲線から、JIS K 7161-1994に記載の評価方法によって求めた引張降伏応力が5.5MPa以下である固体高分子電解質膜15;および該固体高分子電解質膜15が触媒層11を有するアノード13とカソード14との間に配置された膜電極接合体10。

    摘要翻译: 公开了一种用于固体高分子型燃料电池的固体聚合物电解质膜,其在湿态下经历反复溶胀并且在干燥状态下收缩,尽管含有含氟聚合物,但几乎不破裂。 还公开了具有固体聚合物电解质膜的膜电极组件。 具体公开的是:通过根据JIS K 7161-1994的评价方法测定的拉伸应力为5.5MPa以下的固体高分子电解质膜(15),基于根据拉伸制造的拉伸应力 - 应变曲线 测试方法按照JIS K 7161-1994在80℃的温度和1 /分钟的变形速率下进行。 以及包括具有催化剂层(11)的阳极(13),具有催化剂层的阴极(14)和设置在阳极(13)和阴极之间的固体聚合物电解质膜(15)的膜电极组件(10) (14)。

    PROCESS FOR STABILIZING FLUOROPOLYMER HAVING ION EXCHANGE GROUPS
    10.
    发明申请
    PROCESS FOR STABILIZING FLUOROPOLYMER HAVING ION EXCHANGE GROUPS 审中-公开
    具有离子交换聚合物稳定氟聚合物的方法

    公开(公告)号:WO2008046816A1

    公开(公告)日:2008-04-24

    申请号:PCT/EP2007/060986

    申请日:2007-10-16

    IPC分类号: C08F8/22 C08F14/18 C08J5/22

    摘要: The invention pertains to a process for stabilizing a semi-crystalline fluoropolymer comprising ion exchange groups, said process comprising: suspending at least one semi-crystalline fluoropolymer having ion exchange groups [polymer (I)] in at least one fluorinated organic dispersing medium [medium (M)] so as to obtain a dispersion (D) of polymer (I) in a dispersing medium (M); contacting said dispersion (D) with fluorine under irradiation with U. V. radiation so as to obtain a stabilized polymer. Still objects of the invention are a stable semi-crystalline fluoropolymer as above defined having a low amount of unstable ends groups of -COF type, the use of the stabilized fluoropolymer obtained by the process or of the stable fluoropolymer in fuel cells devices, a membrane and a membrane-electrode assembly comprising said fluoropolymers.

    摘要翻译: 本发明涉及一种稳定包含离子交换基团的半结晶含氟聚合物的方法,所述方法包括:在至少一种氟化有机分散介质[介质中]悬浮至少一种具有离子交换基团[聚合物(I)]的半结晶含氟聚合物 (M)],得到分散介质(M)中的聚合物(I)的分散液(D)。 在用U.V辐射照射下使所述分散体(D)与氟接触,以获得稳定的聚合物。 本发明的另一目的是如上定义的稳定的半结晶含氟聚合物,其具有少量-COF型的不稳定端基,通过该方法获得的稳定的含氟聚合物或在燃料电池装置中使用稳定的含氟聚合物,膜 以及包含所述含氟聚合物的膜 - 电极组件。