| 초록 |
Graphene, which has extraordinary electrical conductivity, thermal conductivity, and mechanical properties, is expected to be used for many applications, such as flexible display, battery etc. However, the biggest problem that prevents the application of graphene is aggregation and stacking of graphene sheets due to strong interaction. In this work, as a graphene dispersant, block copolymer of 2,2,2-trifluoroethyl methacrylate (TFEMA) and 4-vinyl pyridine (VP) (PVP-b-PTFEMA) was prepared via reversible addition-fragmentation chain transfer polymerization (RAFT) for stable graphite platelet dispersion. Under supercritical CO2 conditions, graphite was delaminated by supercritical CO2 molecules and PVP-b-PTFEMA block copolymers. Characteristics of the synthesized polymers and the supercritical CO2 treated graphite platelet dispersions will be discussed. This work was supported by the Ministry of Trade, Industry and Energy (no. 10044338) |
