Luminescent Diazaborolyl-Functionalized Polystyrene
详细信息 查看全文
- 作者：Henry Kuhtz ; Fei Cheng ; Stefanie Schwedler ; Lena B枚hling ; Andreas Brockhinke ; Lothar Weber ; Kshitij Parab ; Frieder J盲kle
- 刊名：ACS Macro Letters
- 出版年：2012
- 出版时间：May 15, 2012
- 年：2012
- 卷：1
- 期：5
- 页码：555-559
- 全文大小：275K
- 年卷期：v.1,no.5(May 15, 2012)
- ISSN：2161-1653
文摘
We present two different procedures for the synthesis of poly[4-(1鈥?3鈥?diethyl-1鈥?3鈥?2鈥?benzodiazaborolyl)styrene] (3a) and poly[4-(1鈥?3鈥?diphenyl-1鈥?3鈥?2鈥?benzodiazaborolyl)styrene] (3b). The new polymers were fully characterized by GPC, multinuclear NMR, and elemental analysis. The thermal properties and stability were studied by DSC and TGA, and the optical characteristics were examined by absorption and time-resolved fluorescence spectroscopy. Remarkably high quantum yields of up to 77% were measured. In comparison to molecular species we found significantly shorter lifetimes, likely as a result of incorporation of the chromophores into the polymer structure.