公开(公告)号：US09926266B2

公开(公告)日：2018-03-27

申请号：US15292106

申请日：2016-10-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn Kim ,  Eun Ki Kim ,  So Young Lee ,  Jong Hyun Jang ,  Jin Young Kim ,  Sung Jong Yoo ,  Dirk Henkensmeier ,  Dae Ki Choi ,  Jonghee Han ,  Suk Woo Nam

IPC: C07C303/44 ,  C07C303/32 ,  C07C309/24

CPC classification number: C07C303/44 ,  C07C303/32 ,  C07C309/24

Abstract: Disclosed are a method for preparing a pure isophthalaldehyde bisulfite adduct free from impurities through a specific purification process, and use thereof as a starting material for polymerizing polybenzimidazole under a mild condition. According to the present disclosure, it is possible to obtain a pure isophthalaldehyde bisulfite adduct free from impurities, such as unreacted materials or byproducts. In addition, it is possible to accomplish industrial mass production of a high-molecular weight polybenzimidazole by using the adduct as a starting material for polymerizing polybenzimidazole under a mild condition in an organic solvent.

公开(公告)号：US09214692B2

公开(公告)日：2015-12-15

申请号：US13761322

申请日：2013-02-07

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn Kim ,  Eun Ae Cho ,  Jong Hyun Jang ,  Dae Ki Choi ,  Chang Won Yoon ,  Suk-Woo Nam ,  Dirk Henkensmeier ,  Tae Hoon Lim

IPC: C08G73/18 ,  C08G73/22 ,  H01M8/10 ,  C08L79/04

CPC classification number: H01M8/103 ,  C08G73/18 ,  C08G73/22 ,  C08L79/04 ,  H01M8/1048 ,  Y02E60/521 ,  Y02P70/56

Abstract: Provided is poly(benzimidazole-co-benzoxazole) having polybenzimidazole to which benzoxazole units are introduced, as a polymer electrolyte material. The polymer electrolyte material has both high proton conductivity and excellent mechanical properties even when it is obtained by in-situ phosphoric acid doping. The polymer electrolyte material may substitute for the conventional phosphoric acid-doped polybenzimidazole in a polymer electrolyte membrane fuel cell, particularly in a high-temperature polymer electrolyte membrane fuel cell.

Abstract translation: 提供具有导入苯并恶唑单元的聚苯并咪唑的聚（苯并咪唑 - 共苯并恶唑）作为聚合物电解质材料。 即使通过原位磷酸掺杂获得，聚合物电解质材料也具有高质子传导性和优异的机械性能。 聚合物电解质材料可以在聚合物电解质膜燃料电池中，特别是在高温聚合物电解质膜燃料电池中替代常规磷酸掺杂的聚苯并咪唑。