| 초록 |
Stable dispersion of two-dimensional (2D) boron nitride (BN) has received significant attention for cutting-edge optical and electronic applications due to its favorable solution processablility. Herein, we report an efficient method to disperse BN nanosheets (BNNSs) in polar solvents using pyrene-tethered poly(4-vinylpyridine) (P4VP-Py). As a dispersion agent, P4VP-Py enables bi-functionalization with BNNS via the π–π and Lewis acid–base interactions arising from the pyrene and pyridine moiety, respectively, resulting in highly stable BNNS dispersion in various polar solvents. The dual non-covalent functionalization of BNNSs with P4VP-Py forms a compatible interface between the P4VP-Py matrix and the BNNS adjacent to P4VP-Py, resulting in increased thermal conductivity and dielectric constant along with superior thermal stability. |
