Design and synthesis of triptycene based fluorescent polymer with pendent triazole: Effect of functionality on host-guest interaction
作者:Snehasish Mondal、Achintya Jana、Ranajit Bera、Neeladri Das
DOI:10.1002/pola.28757
日期:2017.11.15
to yield four new ethynyl linked polymers (P2‐P5) with 1,2,3‐triazole pendent. These polymers are organosoluble, amorphous in nature and have high thermal stability [Td > 289 °C and high char yield (>73%) at 800 °C]. Interestingly these new polymers (P2‐P5) are highly fluorescent in solution (Φ = 0.37–0.43 in DCM) relative to the polymer (P1) that does not have the 1,2,3‐triazole motif as a pendent
荧光材料因其对相对电子不足的分析物(例如硝基芳香族化合物(NAC))的高灵敏度而成为化学传感的有前途的候选者之一。在此,已经合成了四种新的1,2,3-三唑官能化的二溴单体(2-5)。随后将这些二溴单体(2-5)与2,6-二乙炔基三烯(DET)聚合,得到四种新的带有1,2,3-三唑侧基的乙炔基连接的聚合物(P2-P5)。这些聚合物是有机可溶的,本质上是无定形的,并且具有很高的热稳定性[ T d > 289°C和在800°C下有较高的炭收率(> 73%)]。有趣的是,这些新聚合物(P2-P5) 相对于没有1,2,3-三唑基体的聚合物(P1)在溶液中(在DCM中,Φ = 0.37–0.43 )具有很高的荧光性。研究了这些聚合物(P1-P5)与电子不足分子(PA和C 60)之间的主客体相互作用。Stern-Volmer猝灭常数(K SV)数据表明,在有1,2,3-三唑连接的侧基存在时,苦味酸与聚合物的相互作用显着增加,而在C