Liquid crystal polymers
    21.
    发明申请

    公开(公告)号:US20060293490A1

    公开(公告)日:2006-12-28

    申请号:US11511540

    申请日:2006-08-29

    CPC classification number: C08G63/605 C07C63/34 C09K19/3809

    Abstract: Liquid crystal polyester derived from phenylene-naphthalene monomers and one or more comonomers display an improved balance of properties, including low melt viscosity, fast cycle time in molding, very low mold shrinkage, high tensile and/or flexural strength, solvent resistance, excellent barrier properties, low water absorption, low thermal expansion coefficient, excellent thermostability, and/or low flammability. The phenylene-naphthalene monomers are The one or more comonomers include 4-hydroxybenzoic acid, 2-hydroxy-6-naphthoic acid, terephthalic acid, isophthalic acid, and derivatives and combinations thereof.

    Liquid crystal polymers
    22.
    发明申请
    Liquid crystal polymers 有权
    液晶聚合物

    公开(公告)号:US20050197483A1

    公开(公告)日:2005-09-08

    申请号:US11061862

    申请日:2005-02-18

    CPC classification number: C08G63/605 C07C63/34 C09K19/3809

    Abstract: Liquid crystal polyester derived from phenylene-naphthalene monomers and one or more comonomers display an improved balance of properties, including low melt viscosity, fast cycle time in molding, very low mold shrinkage, high tensile and/or flexural strength, solvent resistance, excellent barrier properties, low water absorption, low thermal expansion coefficient, excellent thermostability, and/or low flammability. The phenylene-naphthalene monomers are The one or more comonomers include 4-hydroxybenzoic acid, 2-hydroxy-6-naphthoic acid, terephthalic acid, isophthalic acid, and derivatives and combinations thereof.

    Abstract translation: 衍生自亚苯基萘单体和一种或多种共聚单体的液晶聚酯具有改进的性能平衡,包括低熔体粘度,成型周期快,模具收缩率低,抗拉强度和/或抗弯强度高,耐溶剂性,优异的阻隔性 性能,吸水率低,热膨胀系数低,热稳定性好,和/或低易燃性。 亚苯基萘单体是一种或多种共聚单体包括4-羟基苯甲酸,2-羟基-6-萘甲酸,对苯二甲酸,间苯二甲酸及其衍生物和组合。

    Fabrication of Magnetic Nanoparticles
    23.
    发明申请
    Fabrication of Magnetic Nanoparticles 有权
    磁性纳米颗粒的制备

    公开(公告)号:US20150079270A1

    公开(公告)日:2015-03-19

    申请号:US14489587

    申请日:2014-09-18

    CPC classification number: A01N59/16 A01N25/26 A01N43/90 A01N63/04

    Abstract: Methods for forming core-shell magnetic nanoparticles are provided. The method can include: forming an oxide shell around a metal oxide core to form a core-shell magnetic nanoparticle; attaching an anchoring agent to the magnetic nanoparticle; reacting a RAFT agent with the functional group of the anchoring agent such that the RAFT agent is bonded to the magnetic nanoparticle through the anchoring agent; and attaching a polymeric chain to the RAFT agent.

    Abstract translation: 提供了形成核 - 壳磁性纳米颗粒的方法。 该方法可以包括:在金属氧化物核周围形成氧化物壳以形成核 - 壳磁性纳米颗粒; 将锚固剂附着到磁性纳米颗粒上; 使RAFT试剂与锚定剂的官能团反应,使得RAFT试剂通过锚固剂与磁性纳米颗粒结合; 并将聚合物链连接到RAFT试剂上。

    DIBLOCK COPOLYMER MODIFIED NANOPARTICLE/POLYMER COMPOSITES
    29.
    发明申请
    DIBLOCK COPOLYMER MODIFIED NANOPARTICLE/POLYMER COMPOSITES 审中-公开
    二嵌段共聚物改性纳米复合材料/聚合物复合材料

    公开(公告)号:US20100261808A1

    公开(公告)日:2010-10-14

    申请号:US12757671

    申请日:2010-04-09

    Abstract: The invention relates to a modified nanoparticle including a nanoparticle and a diblock copolymer covalently attached to the nanoparticle, the diblock copolymer comprising a first block polymer of molecular weight greater than 1000 attached to the nanoparticle and a second block polymer of molecular weight greater than 1000 covalently linked to the first block polymer, wherein at least one of the first block polymer and second block polymer comprises repeating units having an azide, acetylene or triazole side chain. Nanocomposites incorporating modified nanoparticles, as well as methods of making modified nanoparticles and nanocomposites are also disclosed.

    Abstract translation: 本发明涉及包含纳米颗粒和共价连接到纳米颗粒上的二嵌段共聚物的改性纳米颗粒,所述二嵌段共聚物包含分子量大于1000的第一嵌段聚合物,其与纳米颗粒连接,分子量大于1000的第二嵌段聚合物共价共轭 与第一嵌段聚合物连接,其中第一嵌段聚合物和第二嵌段聚合物中的至少一种包含具有叠氮化物,乙炔或三唑侧链的重复单元。 还公开了掺入改性纳米粒子的纳米复合材料,以及制备改性纳米粒子和纳米复合材料的方法。

    Proton-conducting polymer membrane comprising sulfonic acid-containing polyazoles, and use thereof in fuel cells
    30.
    发明授权
    Proton-conducting polymer membrane comprising sulfonic acid-containing polyazoles, and use thereof in fuel cells 有权
    包含含磺酸的多偶唑的导电聚合物膜及其在燃料电池中的应用

    公开(公告)号:US07745030B2

    公开(公告)日:2010-06-29

    申请号:US10529993

    申请日:2003-10-02

    Abstract: A proton-conducting polymer membrane comprising polyazoles containing sulfonic acid groups is obtainable by a process comprising: A) mixing one or more aromatic or heteroaromatic tetraamino compounds with one or more aromatic or heteroaromatic carboxylic acids or derivatives thereof which contain at least two acid groups per carboxylic acid monomer, with at least part of the tetraamino compounds or the carboxylic acids comprising at least one sulfonic acid group, or mixing of one or more aromatic or heteroaromatic diaminocarboxylic acids, of which at least part comprises sulfonic acid groups, in polyphosphoric acid to form a solution or dispersion; B) optionally heating the solution or dispersion obtained by step A) under inert gas to temperatures of up to 325° C. to form polyazole polymers; C) applying a layer using the mixture from step A) or B) to a support, thus forming a membrane, and D) partially hydrolyzing the polyphosphoric acid moieties of the membrane from step C) until it is self-supporting.

    Abstract translation: 包含含有磺酸基团的多唑的质子传导性聚合物膜可以通过以下方法获得:A)将一种或多种芳族或杂芳族四氨基化合物与一种或多种芳族或杂芳族羧酸或其衍生物混合,所述芳族或杂芳族羧酸或其衍生物含有至少两个酸基团 羧酸单体,其中至少一部分四氨基化合物或羧酸包含至少一个磺酸基团,或在多磷酸中至少部分包含磺酸基团的一种或多种芳族或杂芳族二氨基羧酸混合, 形成溶液或分散体; B)任选地将惰性气体中由步骤A)获得的溶液或分散体加热至高达325℃的温度,以形成聚唑聚合物; C)使用来自步骤A)或B)的混合物将层施加到载体上,从而形成膜,以及D)从步骤C)部分水解膜的多磷酸部分直到其自支撑。

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