Synthesis of poly(2,5-pyridinedicarboxylic acid-alt-hydrazine) and reverse osmosis performance of its membranes

Synthesis of Poly (2,2′-(1,4-phenylene)

Synthesis of Poly (2,2′-(1,4-phenylene) 5,5′-bibenzimidazole) (para-PBI) and Phosphoric Acid Doped Membrane for Fuel Cells

✍ S. Yu; H. Zhang; L. Xiao; E.-W. Choe; B. C. Benicewicz 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 191 KB

## Abstract A detailed investigation of the polymerisation conditions for poly(2,2′‐(1,4‐phenylene)5,5′‐bibenzimidazole) (__para__‐PBI) in polyphosphoric acid (PPA) led to the preparation of high molecular weight polymer. The polymer solutions could be used directly to produce phosphoric acid (PA)‐