An Aromatic Oligomer Micelle: Large Enthalpic Stabilization and Selective Oligothiophene Uptake
作者:Yamato Tsuchida、Keisuke Aratsu、Shuichi Hiraoka、Michito Yoshizawa
DOI:10.1002/anie.202101453
日期:2021.6
An aromatic oligomer micelle, featuring both high stability and high uptake ability, was quantitatively formed in water from amphiphilic oligomers, composed of three bent polyaromatic amphiphiles connected alternately by two hydrophilic chains. The well-defined micelle, with a diameter of ca. 2 nm, remains intact even under highly diluted conditions (ca. 3 μM) and at elevated temperature (>130 °C)
由两亲性低聚物在水中定量形成了具有高稳定性和高吸收能力的芳香族低聚物胶束,该两亲性低聚物由通过两个亲水链交替连接的三个弯曲的多芳族两亲物组成。定义明确的胶束,直径约为1。由于多芳族螯合作用,即使在高度稀释的条件下(约3μM)和高温(> 130°C)下,2 nm仍保持完整。热力学研究表明,大的焓增(ΔH= −110 kJ mol -1)是胶束形成的关键。低聚物胶束高度选择性地包封未取代的低聚噻吩(≥4-mer),所得的水性客体-客体复合物显示出源自多重堆叠的低聚物的异常发射。此外,使用低聚物胶束可以容易地摄取和释放未取代的聚噻吩。