| 초록 |
Polymers containing triphenylamine group are well-known as materials for electronic and optoelectronic devices such as organic light-emitting diodes (OLEDs) and photovoltaic devices due to their excellent thermal stabilities and hole-transport properties. In this research, the anionic polymerization of N-[1,1′-biphenyl]-4-yl-N-(4′-ethenyl[1,1′-biphenyl]-4-yl)-9,9-dimethyl-9H-fluoren-2-amine (A) was performed using sec-butyllithium (sec-BuLi) and potassium naphthalenide (K-Naph) as initiator in THF at -30 ℃ for 10 min. The well-defined poly(A) with controlled molecular weight and narrow molecular weight distribution were successfully synthesized under conditions employed in this work. Block copolymerization of A with styrene (S) and 2-vinyl pyridine (2VP) was carried out to prove the living nature of A and to simultaneously prepare well-defined block copolymers containing poly(A) segment. The synthetic results and characterization will be discussed in detail in this presentation. |
