Abstract
Proton exchange membranes (PEMs) with good proton conductivity and mechanical properties are highly desired for applications in fuel cells. This work immobilized sulfonic acid groups stably into polybenzimidazole (PBI) by a solid phase reaction. The structures of the sulfonated PBI (s-PBI) are characterized by FT-IR spectroscopy. The proton conductivity and mechanical properties of s-PBI are measured. The s-PBI PEMs showed improved proton conductivity as increasing the amount of azides when comparing to the pure PBI PEM. The strength and modulus of s-PBI PEMs are decreased, but still much larger than s-PBI PEMs prepared by acid doping, sulfonation, and blending. Such s-PBI PEMs made by solid phase reaction would be good candidate for fuel cell applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
