| 초록 |
We carried out the anionic polymerization of styrene derivatives containing triphenylamine moieties, 4,4'-vinylphenyltriphenylamine (A) and 4,4'-vinylphenyl-N,N-bis(4-tert-butylphenyl)benzenamine (B). First, the anionic polymerization of A was performed with sec-butyllithium, sec-butyllithium with some additives, and (diphenylmethyl)potassium in THF at 78 °C. In all cases, intermolecular side reaction took place between the polymer chains during the course of the polymerization. On the other hand, the anionic polymerization of B was successfully carried out with sec-butyllithium and potassium naphthalenide in THF at 78 °C for 0.5 h without intermolecular side reaction. The well-defined poly(B) with predictable molecular weights and narrow molecular weight distributions (Mw/Mn = 1.051.11) was quantitatively obtained. The sequential block copolymerization of B with styrene and 2-vinylpyridine was subsequently attempted. |
