Liquid-Phase Exfoliation of Graphite in a Low-Boiling-Point Solvent Using 2,6-Azulene-Based Conjugated Copolymers as Stabilizers AITranslate

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DOI：https://doi.org/10.1021/acsapm.3c01807

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In the present study, we report a procedure of liquid-phase exfoliation (LPE) of pristine graphite in chloroform using azulene-based copolymers. The resulting dispersions were prepared using tip sonication for only 2 h and were stable over months. Sonication parameters and their impact on the graphene concentration have been studied. Atomic force microscopy, Raman spectroscopy, and transmission electron microscopy revealed that the exfoliated material consists of multiple layers of graphene with an average thickness ranging from 10 to 35 nm. The presence of the polymer not only enables the exfoliation process and stabilizes the dispersions but also improves the processability of the solution. G/PAz films were prepared, and conductivity values of up to 1.9 S·cm–1 were measured.