Comparative study on proton conductivity of a polypyridinyl multicarboxylate-based hydrogen-bonded organic framework and related chitosan composite membrane

The crystalline hydrogen-bonded organic framework 1 was doped into a chitosan film for the first time. At 100 °C and 98% RH, CS/HOF-4 exhibits a high proton conductivity of 2.61 × 10 −2 S cm −1 .