Figure 1.

(a) Schematic illustration of synthesis of HPCMMs from PCMVImTf₂N-PAA PPMs. (b, c) Photographs of a PPM and the derived HPCMM. (d, e) Cross-sectional SEM images of HPCMMs derived from PCMVImTf₂N-PAA PPMs with PAA of M_W ∼ 100 kDa and 250 kDa at 1000 °C, respectively. (f, g) High-magnification cross-sectional SEM images of the HPCMM in (e). Scale bar is 200 nm. (i, j) Representative HRTEM images at different magnifications of the HPCMM prepared at 1000 °C. (k) Selected-area electron diffraction (SAED) pattern that is indicative of a single-crystal-like characteristic. Reproduced with permission from ref (21). Copyright 2017 Springer Nature.