含手性联萘冠醚侧基的聚苯型共轭聚合物的合成与表征  

Synthesis and Characterization of the Conjugated Poly(phenylene) with Chiral Binaphthyl Crown Ether as Pendent Group

作　　者：刘宏伟[1] 唐文宏[1] 姜静[1] 赵优良[1] 陈传福[1] 习复[1] 

机构地区：[1]中国科学院化学研究所分子科学中心,

出　　处：《化学学报》2001年第10期1841-1845,共5页Acta Chimica Sinica

基　　金：国家自然科学基金

摘　　要：用钯催化的Suzuki缩聚法合成了一类新型主链为共轭聚苯结构,侧基为手性联萘冠醚取代基团的光学活性共轭聚合物用1H-NMR、紫外吸收光谱、园二色性、荧光光谱、热失重及差热分析等方法进行了表征结果表明该光学活性聚苯具有良好的热稳定性和高的比旋度,在溶液中能络合碱金属离子,其荧光发射强度随着离子浓度的增大而逐渐降低该光学活性聚苯的荧光光谱在410 nm处出现最大发射峰,是一类潜在的发蓝光材料.A novel optically active poly(phenylene) substituted with chiral binaphthyl crown ether functional group has been synthesized by using the palladium - catalyzed Suzuki cross - coupling reaction. The structure and properties of the polymer were characterized with H-1 NMR, UV, CD, fluorescence spectroscopic, thermal gravimetric analyses and differential scanning calorimetry. It is found that the polymer exihibits high thermal stability and high specific optical rotation. In addition, the polymer can bind alkali - metal ions in solution and the fluorescence of the polymer is gradually attenuated with the increasing of concentration of alkali - metal ions. This polymer emits strong blue light when irradiated and is expected to have the potential application for blue light emitting materials.

关 键 词：光学活性 共轭聚合物 手性联苯冠醚 聚苯 合成 表征 热稳定性 比旋度 

分 类 号：O632.7[理学—高分子化学]