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    • 5. 发明申请
    • METHOD OF FORMING THIN FILM
    • 形成薄膜的方法
    • US20100093962A1
    • 2010-04-15
    • US12641183
    • 2009-12-17
    • Takayuki ArakiTetsuhiro Kodani
    • Takayuki ArakiTetsuhiro Kodani
    • C08F214/22
    • C08F114/22C07C21/18Y10T428/3154Y10T428/31544
    • There is provided a method of forming a thin film of vinylidene fluoride homopolymer having crystal form I which is applicable to various substrates in relatively easy way (coating conditions, application method, etc.), a process for preparing a vinylidene fluoride homopolymer having crystal form I efficiently at high purity, and novel vinylidene fluoride homopolymers which can give a thin film being excellent in ferroelectricity. The method of forming a thin film of vinylidene fluoride homopolymer comprises (i) a step for preparing a green powder product of vinylidene fluoride homopolymer comprising crystal form I alone or as main component by subjecting vinylidene fluoride to radical polymerization in the presence of a bromine compound or iodine compound having 1 to 20 carbon atoms which contains at least one moiety represented by —CRf1Rf2X1, wherein X1 is iodine atom or bromine atom; Rf1 and Rf2 are the same or different and each is selected from fluorine atom or perfluoroalkyl groups having 1 to 5 carbon atoms and (ii) a step for forming a thin film on a substrate surface by using vinylidene fluoride homopolymer which comprises crystal form I alone or as main component and is obtained from the green powder product of vinylidene fluoride homopolymer comprising crystal form I alone or as main component.
    • 提供一种以相对容易的方式(涂布条件,涂布方法等)形成可以适用于各种基材的结晶形式I的偏二氟乙烯均聚物的薄膜的方法,制备具有结晶形式的偏二氟乙烯均聚物 我高效率地得到高纯度的新型偏二氟乙烯均聚物,可以得到铁电性优异的薄膜。 形成偏氟乙烯均聚物薄膜的方法包括(i)通过在溴化合物的存在下使偏二氟乙烯进行自由基聚合,制备单晶或单体晶形的偏二氟乙烯均聚物的生粉产物的步骤 或含有至少一个由-CR f 1 R f 2 X 1表示的部分的碳原子数为1〜20的碘化合物,其中X1为碘原子或溴原子; Rf1和Rf2相同或不同,分别选自具有1〜5个碳原子的氟原子或全氟烷基,(ii)通过使用仅含有晶型I的偏二氟乙烯均聚物在基板表面上形成薄膜的步骤 或作为主要成分,并且由包含单晶晶体I或主要成分的偏二氟乙烯均聚物的绿色粉末产品获得。
    • 7. 发明授权
    • Fluorocopolymer material with sulfonic acid functional groups as a solid polyelectrolyte for use in fuel cells
    • 具有磺酸官能团的含氟共聚物材料作为用于燃料电池的固体聚电解质
    • US07455934B1
    • 2008-11-25
    • US09700185
    • 1999-05-10
    • Takayuki ArakiNoritoshi OkaYoshito TanakaTakayuki NakamuraTetsuo Shimizu
    • Takayuki ArakiNoritoshi OkaYoshito TanakaTakayuki NakamuraTetsuo Shimizu
    • H01M10/08
    • H01S5/22C08J5/2237C08J2327/12G02B2006/12097G02B2006/12176H01B1/122H01M8/0289H01M8/1025H01M8/1039H01M8/1067H01S5/0655H01S5/20H01S5/2004H01S5/2213H01S5/2218H01S5/2227
    • The invention is a material for a solid polyelectrolyte, comprising a multi-segmented fluoropolymer that comprises a block copolymer and/or a graft copolymer, wherein the copolymer contains one or more blocks essentially consisting of segment A and one or more blocks essentially consisting of segment B, the segment A combines with the segment B, wherein the segment A has a molecular weight of 5,000 to 1,000.000, and the Segment A is a copolymer chain comprising (a) an ethylenicfluoromonomer containing sulfonic acid functional groups each represented by Formula (1) CX2═CX1—(O)n—Rf—SO2Y, wherein X and X1 may be the same or different and are each hydrogen or fluorine; Y is FI, Cl, or OY1 wherein y1 is hydrogen, alkali metal or C1-C5 alkyl; Rf is C1 to C40 divalent fluoroalkylene or C1 to C40 divalent fluoroalkylene having one or more ether bonds; and n is 0 or 1; and (b) at least one type of ethylenic fluoromonomer copolymerizable with the ethylenic fluoromonomer (a) and containing no sulfonic acid functional groups, the segment B is a fluoropolymer containing no sulfonic acid functional groups, has a molecular weight of 3,000 to 1,200,000, and has a crystalline melting point of 100° C. or higher or a glass transition point of 100° C. or higher, wherein the ratio of segment A:segment B in the segmented fluoropolymer is 5:9˜to 98:2 30:70 to 90:10 wt. %.
    • 本发明是用于固体聚电解质的材料,其包含多段含氟聚合物,其包含嵌段共聚物和/或接枝共聚物,其中所述共聚物含有一个或多个基本上由片段A组成的嵌段和一个或多个基本上由片段 B,段A与段B结合,其中段A的分子量为5,000〜1,000.000,段A为共聚物链,其包含(a)含有各自由式(1)表示的磺酸官能团的烯键式氟单体, CX 2 - - - - - - - - - - - - - - - - - - - - - - - - - - - - (O) SUP> 1可以相同或不同,分别为氢或氟; Y是FI,Cl或OY 1,其中y 1是氢,碱金属或C 1 -C 5 烷基; Rf是C 1至C 40二价氟代亚烷基或C 1至C 40二价氟代亚烷基,其具有一个或多个醚 债券 并且n为0或1; 和(b)至少一种可与烯属含氟单体(a)共聚并且不含磺酸官能团的烯属含氟单体,段B是不含磺酸官能团的含氟聚合物,分子量为3,000至1,200,000, 具有100℃以上的结晶熔点或100℃以上的玻璃化转变温度,其中分段含氟聚合物中A段:B段的比例为5:9〜98:2 30:70 至90:10重量 %。