Abstract: The present invention relates to a class of polymer ion imbibed membranes for electrolyte flow batteries. The membranes are a conducting aromatic polyether type copolymer bearing nitrogen heterocycles groups, especially pyridine type. While the membranes can be used in acid, basic, and neutral electrolytes, the nitrogen heterocycles in the membrane interact with acid in the electrolyte to form a proton transport network, so as to keep the proton transport performance of the membrane. The membrane has excellent mechanical stability and thermostability as well as tunable porosity.

Abstract: New conjugated polymers based on 2,3-diphenylquinoxaline, dibenzo[a,c]phenazine, 2,3-diphenylpyrido[3,4-b]pyrazine, dibenzo[f,h]pyrido[3,4-b]quinoxaline, 2,3-diphenylpyrazino[2,3-d]pyridazine and dibenzo[f,h]pyridazino[4,5-b]quinoxaline along with their derivatives and thiophene, thieno[3,2-b]thiophene and thieno[2,3-b]thiophene along with their derivatives and a preparation method and uses thereof are disclosed.

Abstract: Facile ways towards the development of linear and brush-type zwitterionic conjugated polyelectrolytes possessing hole or electron blocking abilities are presented using combination of polymerization techniques, such as Suzuki or Stille cross coupling, Grignard Metathesis Polymerization and Atom transfer radical polymerization. These zwitterionic conjugated polyelectrolytes will serve as excellent interface materials in various optoelectronic devices.

Abstract: New polymeric networks bearing benzimidazole units have been prepared. These polymeric networks will combine high proton conductivity, superior mechanical properties and thermal and oxidative stability due to the existence of polar benzimidazole groups and the presence of the unique polymeric architecture. The prepared polymer networks can be used in the catalyst ink of the electrodes in high temperature PEM fuel cells.