Han, Hoon published the artcileDevelopment of a proton exchange membrane based on trifluoromethanesulfonylimide-grafted polybenzimidazole, Name: Sodium 3-bromopropane-1-sulfonate, the publication is Polymer Journal (Tokyo, Japan) (2021), 53(12), 1403-1411, database is CAplus.
Trifluoromethanesulfonylimide-grafted polybenzimidazole (PBI-TFSI) was synthesized for proton exchange membrane (PEM) applications. Its proton conductivity was (a) less dependent on humidity and (b) higher than that of conventional fluorine-based PEM (Nafion) and propanesulfonic acid-grafted PBI (PBI-PS) at a relative humidity of 40%. The chem. structure of PBI-TFSI was investigated using 1H and 19F NMR and Fourier transform IR spectroscopy. The membranes exhibited good transparency, flexibility, and thermal stability up to 350 °C. Membranes with different side chain grafting ratios were prepared, and the water uptake and hydration number of the PBI-TFSI membranes were lower than those of the PBI-PS membranes, most likely because of the hydrophobicity of the side chain. The higher proton concentration provided by TFSI with stronger acidity than PS might be the reason for the higher proton conductivities of PBI-TFSI.
Polymer Journal (Tokyo, Japan) published new progress about 55788-44-8. 55788-44-8 belongs to bromides-buliding-blocks, auxiliary class Bromide,Salt,Aliphatic hydrocarbon chain,Aliphatic hydrocarbon chain, name is Sodium 3-bromopropane-1-sulfonate, and the molecular formula is C3H6BrNaO3S, Name: Sodium 3-bromopropane-1-sulfonate.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary