Synthesis and characterization of sulfonated mutiphenyl conjugated polyimide for PEMFC

Add time:08/21/2019    Source:sciencedirect.com

A new monomer, di-sulfuricacid-1,1-bis(4-aminophenyl)-2,2-diphenylethylene (SBAPDPE), was synthesized by direct sulfonation of the parent diamine, 1,1-bis(4-aminophenyl)-2,2-diphenylethylene (BAPDPE) using concentrated sulfuric acid. A series of the side-chain-type sulfonated conjugated tetraphenylethylene polyimides (SCTPPIs) with different degrees of sulfonation were prepared from dianhydrides with SBAPDPE and non-sulfonated diamine. The SCTPPIs generally showed good solubility in m-cresol and DMSO. The membranes were studied by FT-IR, 1H NMR spectroscopy, and TGA. Sorption experiments were conducted to observe the interaction of sulfonated polymers with water. The ion exchange capacity (IEC) and proton conductivity were evaluated with increase of degree of sulfonation.

We also recommend Trading Suppliers and Manufacturers of 2-(4-Aminophenyl)-1H-benzimidazol-6-amine conjugate acid (cas 113659-61-3). Pls Click Website Link as below: cas 113659-61-3 suppliers

Prev:Original articleInhibition of tumor growth and angiogenesis by 2-(4-aminophenyl) benzothiazole in orthotopicglioma C6 rat model
Next:Diastereoselective synthesis of β-amino ketone and acid derivatives by palladium-catalyzed conjugate addition)