| 초록 |
Fluorene-containing spiro-type conjugated polymers were synthesized via the cyclopolymerization of dipropargylfluorenes (2-substituted, X= H, Br, Ac, NO2) with various transition metal catalysts. The polymerization of dipropargylfluorenes proceeded well by Mo-based catalysts to give a high yield of polymers. The pallidium (II) chloride was also found to be effective for the present polymerization to give a high yield of polymers. The poly(dipropargylfluorene) derivatives were thermally more stable than poly(dipropargylfluorene) itself, and X-ray diffraction analyses revealed that the present polymers are mostly amorphous. The photoluminescence peaks of the present polymers were observed at about 457-491 nm, depending on the substitutents oof fluorene moieties. |
