Synthesis and properties of helically-folded poly(arylenediethynylene)s
Synthesis and properties of helically-folded poly(arylenediethynylene)s
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螺旋折叠聚亚芳基二乙炔基的合成及性能
DOI：
10.1039/d1py00144b
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发表时间：
2021
影响因子：
4.6
通讯作者：
Itami Kenichiro
中科院分区：
文献类型：
--
作者：
Toya Michihisa;Ito Hideto;Itami Kenichiro
具有二乙炔接头的基于芳基的螺旋折叠体不仅能够提供物理上大直径的空腔，而且还可以展示具有简单乙炔接头的相应折叠体不能实现的各种性质，例如结构转化。在这里，我们已经开发了基于聚（亚芳基二乙炔基）（聚-ArDE）的螺旋折叠体，其中每个芳基基团通过二乙炔接头连接。以萘、芘和吡啶为中心芳基的聚ArDE均表现出独特的性质。将萘和芘的折叠体稳定的螺旋折叠在各种溶剂中。此外，芘聚合物的浓度依赖性的发射是完全不同的单体，由于其折叠的三维结构。基于吡啶的聚合物显示出意想不到的溶剂依赖性和刺激响应性，这表明在传感中可能的应用。通过紫外-可见吸收光谱、荧光光谱、圆二色光谱、分子动力学计算和滴定实验，详细阐明了这些性质。
Aryl-based helical foldamers with diacetylene linkers are not only capable of providing physically large diameter cavities, but can also showcase a variety of properties, such as structural transformation, that the corresponding foldamers with simple acetylene linkers cannot achieve. Here, we have developed helical foldamers based on poly(arylene diethynylene)s (poly-ArDEs), in which each aryl group is connected by diacetylene linkers. The poly-ArDEs with naphthalene, pyrene and pyridine as a central aryl group each expressed unique properties. The foldamers incorporating naphthalene and pyrene stabilized the helical folding in a variety of solvents. In addition, the concentration-dependent emission by the pyrene polymer was completely different from that of the monomer due to its folded three-dimensional structure. The pyridine-based polymer showed unexpected solvent dependence and stimuli responsiveness, suggesting possible applications in sensing. These properties were elucidated in detail by UV–Vis absorption, fluorescence, and circular dichroism (CD) spectra, molecular dynamics calculations, and titration experiments.
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影响因子：
4.3
作者：
Ohishi, Yuki;Abe, Hajime;Inouye, Masahiko
通讯作者：
Inouye, Masahiko
影响因子：
--
作者：
M. Waki;H. Abe;M. Inouye
通讯作者：
M. Waki;H. Abe;M. Inouye
影响因子：
15
作者：
Inouye, M;Waki, M;Abe, H
通讯作者：
Abe, H
通过光诱导交联螺旋聚合物构建共价有机纳米管
DOI：
--
发表时间：
2016
期刊：
影响因子：
--
作者：
Hideto Ito;Yukari Mitamura;Yasutomo Segawa and Kenichiro Itami;Hideto Ito;Hideto Ito;Hideto Ito;Hideto Ito;Hideto Ito;Hideto Ito
通讯作者：
Hideto Ito