公开(公告)号：KR101370806B1

公开(公告)日：2014-03-12

申请号：KR1020130049490

申请日：2013-05-02

Applicant: 한국과학기술연구원

Inventor： 김형준 ,  권연혜 ,  한준영 ,  함형철 ,  장종현 ,  남석우 ,  조은애 ,  유성종 ,  윤창원

IPC: C08G75/23 ,  C08L81/06 ,  C08J5/22 ,  H01M8/10

CPC classification number: H01M8/1027 ,  C08G75/00 ,  C08G75/23 ,  C08J5/22 ,  C08J2371/10 ,  C08L81/06 ,  H01B1/122 ,  H01M8/1072 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02P70/56

Abstract: The present invention relates to a sulfonated polyethersulfone copolymer containing hydroxyl groups, a preparing method thereof, a polymer electrolyte membrane for a fuel cell and a membrane electrode comprising the same and more particularly, to a polymer electrolyte membrane having much higher ionic conductivity than existing sulfonated polymer electrolyte membranes by applying a sulfonated polyethersulfone electrolyte membrane containing hydroxyl groups and a membrane electrode assembly comprising the same to a fuel cell. The sulfonated polyethersulfone copolymer electrolyte membrane containing hydroxyl groups manufactured according to the present invention is expected to substitute for fluorinated polymer electrolyte membranes such as high-priced Nafion because the sulfonated polyethersulfone copolymer electrolyte membrane has much higher ionic conductivity under the conditions of various temperatures and pressures than existing sulfonated polymer electrolyte membranes. Moreover, the polymer electrolyte membrane for a fuel cell manufactured according to the present invention can be applied to a membrane electrode assembly for a fuel cell by being arranged between an anode and a cathode and the membrane electrode assembly can be applied to the key components of an electrolyte membrane fuel cell. [Reference numerals] (AA) Comparative example; (BB) Example 2

Abstract translation: 本发明涉及包含羟基的磺化聚醚砜共聚物，其制备方法，用于燃料电池的聚合物电解质膜和包含该聚合物电解质膜的膜电极，更具体地说，涉及一种具有比现有磺化的离子电导率高得多的高分子电解质膜 通过将包含羟基的磺化聚醚砜电解质膜和包含其的膜电极组合物应用于燃料电池而形成高分子电解质膜。 由于磺化聚醚砜共聚物电解质膜在各种温度和压力的条件下具有高得多的离子传导性，所以预期本发明制备的包含羟基的磺化聚醚砜共聚物电解质膜可代替诸如高价Nafion等氟化聚合物电解质膜 比现有的磺化聚合物电解质膜。 此外，根据本发明制造的燃料电池用聚合物电解质膜可以通过布置在阳极和阴极之间而用于燃料电池用膜电极组件，并且膜电极组件可以应用于 电解质膜燃料电池。 （附图标记）（AA）比较例; （BB）实施例2