Abstract Polyimide is one of the best super engineering materials in world at present, and it required to have high bearing capacity specific temperature strain rate because application environment. Therefore, compressive mechanical properties polyimide different rates (10 −3 s −1 –4000 ) temperatures (20 °C–350 °C) were researched. The experimental results show sensitivity rates. However, hard...

N-doped carbon nanosheets derived from triazine-containing polyimide-based covalent organic framework (TP-COF) exhibit outstanding electrocatalytic hydrogen evolution.