摘要
Mesomorphic and luminescent poly(propiolates) with different skeleton structures (-{(R)C=C[CO2(CH2)6OCO-Biph-OC7H 15]}n-; R = H (1), CH3 (2), C6H5 (3), Biph = biphenylyl} are synthesized. The backbone absorption in 2 and 3 are weak but upon photoexcitation, the polymers emit strong violet light of 369 nm, whose intensities are higher than that from poly(1-phenyl-1-octyne), a well-known highly fluorescent polyacetylene. The main chain of 3 absorbs strongly at 380 nm and the polymer is completely nonluminescent. All the polymers are thermally stable and form enantiotropic monolayer SmA phase, with 1 adopting well-ordered packing arrangements.
源语言 | 英语 |
---|---|
页(从-至) | 132-138 |
页数 | 7 |
期刊 | Proceedings of SPIE - The International Society for Optical Engineering |
卷 | 4463 |
DOI | |
出版状态 | 已出版 - 1 1月 2001 |
已对外发布 | 是 |
活动 | Liquid Crystals V - San Diego,CA, 美国 期限: 29 7月 2001 → 30 7月 2001 |