Nanostructured polymer membranes for proton conduction
    41.
    发明授权
    Nanostructured polymer membranes for proton conduction 有权
    用于质子传导的纳米结构聚合物膜

    公开(公告)号:US08465883B2

    公开(公告)日:2013-06-18

    申请号:US12667219

    申请日:2008-06-30

    IPC分类号: H01M8/10

    摘要: Polymers having an improved ability to entrain water are characterized, in some embodiments, by unusual humidity-induced phase transitions. The described polymers (e.g., hydrophilically functionalized block copolymers) have a disordered state and one or more ordered states (e.g., a lamellar state, a gyroid state, etc.). In one aspect, the polymers are capable of undergoing a disorder-to-order transition while the polymer is exposed to an increasing temperature at a constant relative humidity. In some aspects the polymer includes a plurality of portions, wherein a first portion forms proton-conductive channels within the membrane and wherein the channels have a width of less than about 6 nm. The described polymers are capable of entraining and preserving water at high temperature and low humidity. Surprisingly, in some embodiments, the polymers are capable of entraining greater amounts of water with the increase of temperature. The polymers can be used in Polymer Electrolyte Membranes in fuel cells.

    摘要翻译: 在一些实施方案中,通过异常的湿度诱导相变来表征具有改进的夹带水能力的聚合物。 所描述的聚合物(例如,亲水官能化的嵌段共聚物)具有无序状态和一个或多个有序状态(例如,层状状态,旋转状态等)。 在一个方面,当聚合物在恒定的相对湿度下暴露于升高的温度时,聚合物能够经历无序到阶跃迁。 在一些方面,聚合物包括多个部分,其中第一部分在膜内形成质子传导通道,并且其中通道具有小于约6nm的宽度。 所述聚合物能够在高温和低湿度下夹带和保存水。 令人惊奇的是,在一些实施方案中,随着温度的升高,聚合物能够夹带更多量的水。 聚合物可用于燃料电池中的聚合物电解质膜。

    APPARATUS FOR COMPRESSION OF A STACK AND FOR A WATER TREATMENT SYSTEM
    42.
    发明申请
    APPARATUS FOR COMPRESSION OF A STACK AND FOR A WATER TREATMENT SYSTEM 有权
    堆叠和水处理系统的压缩装置

    公开(公告)号:US20130105325A1

    公开(公告)日:2013-05-02

    申请号:US13655216

    申请日:2012-10-18

    IPC分类号: C02F1/469

    摘要: The present disclosure is directed at a compression device for compressing a stack to prevent leaks and at an apparatus including the stack and the compression device. The stack includes a pair of rigid end plates located at opposing ends of the stack, a plurality of membrane bounded compartments layered between one of the rigid end plates and the other of the rigid end plates and fluid manifolds extending through the membrane bound compartments. The compression device is fixedly coupled to opposing ends of the pair of rigid end plates and includes compression members movable to compress one of the rigid end plates towards the other of the rigid end plates. The compression members are positioned to apply force to the stack in the vicinity of the fluid manifolds.

    摘要翻译: 本公开涉及用于压缩堆叠以防止泄漏的压缩装置以及包括堆叠和​​压缩装置的装置。 堆叠包括位于堆叠的相对端处的一对刚性端板,多个膜界定的隔室,其分层在刚性端板之一和刚性端板中的另一个和延伸穿过膜结合隔室的流体歧管之间。 压缩装置固定地联接到一对刚性端板的相对端部,并且包括可移动以压缩其中一个刚性端板朝向另一刚性端板的压缩构件。 压缩构件被定位成在流体歧管附近向堆叠施加力。

    Crosslinked polymer film bearing ionic groupings
    44.
    发明授权
    Crosslinked polymer film bearing ionic groupings 有权
    交联聚合物膜承载离子组

    公开(公告)号:US08376149B2

    公开(公告)日:2013-02-19

    申请号:US12094580

    申请日:2006-11-21

    IPC分类号: B01D71/68 B28B13/00

    摘要: The invention relates to the preparation of a crosslinked polymeric film bearing ionic groupings.The process consists in extruding a material comprising at least one prepolymer, in polymerizing said material after extrusion, and in subjecting the extruded material to a chemical reaction for grafting ionic groupings. The prepolymer comprises repeating units each comprising at least one aromatic group GA and at least one functional group GF; it bears at least one group GP which is polymerizable thermally at a temperature greater than the extrusion temperature, or photochemically, and also at least one reactive group GR which allows the grafting of ionic groupings.The films are useful as a membrane for fuel cells or electrodialysis, as an electrolyte of a lithium battery, of a supercapacitor or of an electrochromic device, or as an ion exchange membrane.

    摘要翻译: 本发明涉及具有离子基团的交联聚合物膜的制备。 该方法包括挤出包含至少一种预聚物的材料,在挤出后使所述材料聚合,以及使挤出的材料经受用于接枝离子组的化学反应。 预聚物包含各自包含至少一个芳族基团GA和至少一个官能团GF的重复单元; 它具有至少一个在大于挤出温度的温度下热可聚合的GP组,或光化学上还有至少一个允许离子组接枝的反应性基团GR。 这些膜可用作燃料电池或电渗析的膜,作为锂电池的电解质,超级电容器或电致变色器件,或作为离子交换膜。

    MOBILE WATER TREATMENT AND RESIN TRANSFER HUB

    公开(公告)号:US20130037477A1

    公开(公告)日:2013-02-14

    申请号:US13208537

    申请日:2011-08-12

    申请人: Andrew Parke

    发明人: Andrew Parke

    IPC分类号: B01J49/00 C02F1/28

    摘要: A system and method for providing mobile or temporary water treatment involving ion exchange resins includes a service centre, one or more treatment vehicles, a resin transfer hub and one or more resin transport vehicles. The service centre can be used to regenerate one or more types of ion exchange resins. The treatment vehicle carries water treatment equipment including a tank holding ion exchange resin. The resin transfer hub facilitates moving resin between a treatment vehicle and a resin transport vehicle. The resin transport vehicle is adapted for carrying resin by one or more of land, sea and air between the resin forwarding centre and the service centre. In operation, a treatment vehicle brings resin requiring regeneration to the resin transfer hub, where it is emptied and then re-filled with regenerated resin. Resin requiring regeneration is transferred to a resin transport vehicle for transport to the service centre. The resin transport vehicle is re-filled there with regenerated resin, which is taken back to the resin transfer hub for transferred to a treatment vehicle.

    Process for purification of water soluble polymers
    47.
    发明授权
    Process for purification of water soluble polymers 有权
    水溶性聚合物的纯化方法

    公开(公告)号:US08222039B2

    公开(公告)日:2012-07-17

    申请号:US12528304

    申请日:2007-02-22

    IPC分类号: C08G65/329

    摘要: A process for purification of water soluble polymers is provided. A polymer of interest can be separated from a mixture of polymers, provided the polymer of interest differs from other polymers in the mixture in the number of reactive terminal groups. The process involves derivatizing polymers at the reactive terminal groups with a derivatizing molecule, bearing either (i) two or three cationic or anionic ionizable groups, and a group capable of covalent bonding to the reactive terminal groups or (ii) three or four ionizable groups, at least one of which is capable of covalent bonding to the reactive terminal groups; followed by ion exchange. The process allows removal of PEG from MPEG, and can be used for polymers having an average size greater than 9,000 Da Derivatization may be reversible in order to allow re-use of recovered contaminant polymers.

    摘要翻译: 提供了一种纯化水溶性聚合物的方法。 感兴趣的聚合物可以从聚合物的混合物中分离出来,只要目的聚合物与反应性末端基团数目的混合物中的其它聚合物不同。 该方法包括用衍生化分子衍生化反应性末端基团的聚合物,该衍生化分子带有(i)两个或三个阳离子或阴离子可离子基团,以及能够与反应性末端基团共价连接的基团,或(ii)三个或四个可离子化基团 ,其中至少一个能够与反应性末端基团共价结合; 然后进行离子交换。 该方法允许从MPEG去除PEG,并且可以用于平均尺寸大于9,000Da的聚合物。衍生化可以是可逆的,以便允许再利用回收的污染物聚合物。