[1PS-203]
우수논문발표상 응모자Precision Synthesis of Thermally Crosslinkable Hole-Transporting Block Copolymers with Triphenylamine and Benzocyclobutene via Living Anionic Polymerization
발표자양예은 (숭실대학교)
연구책임자강범구 (숭실대학교)
Abstract
In solution-processed OLEDs, the underlying layers require sufficient solvent resistance during the deposition of upper layers. In this study, a novel monomer incorporating benzocyclobutene and triphenylamine moieties (BTPA) was designed, and its anionic block copolymerization with a triphenylamine-containing comonomer (FTPA) was carried out using potassium naphthalenide to precisely synthesize well-defined block copolymers, poly(FTPA-b-BTPA-b-FTPA). A series of poly(FTPA-b-BTPA-b-FTPA) with varying molecular weights of the poly(FTPA) segments, while maintaining a constant poly(BTPA) block length, was prepared to investigate the effect of FTPA block chain length on hole-transporting properties. Solvent-rinsing tests were performed to determine suitable crosslinking conditions. The thermal and optical properties of poly(FTPA-b-BTPA-b-FTPA) were systematically investigated investigated to evaluate their potential as hole-transporting layers in OLEDs.