Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 288, Issue 1-2, Pages 255-260Publisher
ELSEVIER
DOI: 10.1016/j.memsci.2006.11.022
Keywords
hyperbranched polybenzimidazole; synthesis; membrane; proton conductivity
Categories
Ask authors/readers for more resources
DA series of amine-terminated hyperbranched polybenzimidazoles (HBPBIs) were successfully synthesized by condensation polymerization of aromatic dicarboxylic acids and an in situ synthesized aromatic hexamine intermediate product from 1,3,5-benzenetricarboxylic acid (BTA) and 3,3'-diaminobenzidine (DAB) in polyphosphoric acid (PPA) at 190 degrees C for 20 h. HBPBI membranes were fabricated by solution cast method in the presence of cross-linkers (ethylene glycol diglycidyl ether (EGDE) and terephthaldehyde (TPA)). The resulting HBPBI membranes displayed good mechanical properties and good thermal stability. High proton conductivity was obtained with the phosphoric acid-doped and TPA-cross-linked HBPBI membranes at 0% relative humidity. (c) 2006 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available