Synthesis of Optically Active Regioregular Polythiophenes and Their Self-Organization at the Air–Water Interface
作者:Yuko Takeoka、Fumihiko Saito、Masahiro Rikukawa
DOI:10.1021/la4015527
日期:2013.7.9
measurements, circular dichroism (CD), and UV–vis spectroscopy. X-ray diffraction patterns of the cast films demonstrated that regioregular HT-PMOET possessed a strong tendency to self-assemble into highly ordered, crystalline structures. The HT-P(S)MOET and HT-P(R)MOET showed strong Cotton effects, while HT-P(±)MOET showed very weak Cotton effects. The presence of a circular dichroism effect indicated
在噻吩环的第三位置含有光学活性取代基的区域规则聚噻吩,头对尾聚(3- [2-((S)-1-甲基辛氧基氧基)乙基]噻吩)s(HT -P(S)MOET ),是使用高反应性锌合成的。为了比较,还分别由R-型单体和外消旋单体合成了HT- P(R)MOET和非手性HT- P(±)MOET 。所述HT -PMOET且具大于95%的头-尾耦合,其重均分子量(中号瓦特1.96×10之间)4和2.94×104。使用1 H和13 C NMR,旋光功率测量,圆二色性(CD)和UV-vis光谱对聚合物进行表征。流延膜的X射线衍射图表明,规则的HT- PMOET具有很强的自组装成高度有序的晶体结构的趋势。所述HT -P(小号)MOET和HT -P([R)MOET表现出较强的棉效果,同时HT -P(±)MOET表现出非常弱的棉花的效果。圆二色性效应的存在表明侧链手性诱导了聚噻吩主链中的光学活性。HT的单层形成-PMO