The Chirality Induction and Modulation of Polymers by Circularly Polarized Light

The Chirality Induction and Modulation of Polymers by Circularly Polarized Light
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圆偏振光对聚合物的手性诱导和调制

DOI:
10.3390/sym11040474
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发表时间:
2019-04
期刊:
影响因子:
2.7
通讯作者:
Gang Zou
Gang Zou
中科院分区:
综合性期刊4区
文献类型:
--
作者:
Guang Yang;Siyu Zhang;Jingang Hu;Michiya Fujiki;Gang Zou

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手性是生物体的自然属性,在维持生物体的新陈代谢、进化和功能活动中发挥着重要作用。不对称构象代表了地球生物体中生物大分子的手性结构,例如蛋白质和酶的L-氨基酸,以及DNA或RNA的D-糖,它们优先以一种对映体形式存在。在猎户座形成区域观察到的圆偏振光(CPL)长期以来一直被认为是单一手性的起源之一。在此,描述了 CPL 引发的不对称聚合、基于聚合物的手性光调制。详细描述了CPL和聚合物(包括聚二乙炔、偶氮苯聚合物、手性配位聚合物和聚芴)之间的机理。该小型综述为通过 CPL 辐照制造手性聚合物提供了一种有前景的灵活不对称合成方法,希望更好地了解地球上同手性的起源。
Chirality is a natural attribute nature of living matter and plays an important role in maintaining the metabolism, evolution and functional activities of living organisms. Asymmetric conformation represents the chiral structure of biomacromolecules in living organisms on earth, such as the L-amino acids of proteins and enzymes, and the D-sugars of DNA or RNA, which exist preferentially as one enantiomer. Circularly polarized light (CPL), observed in the formation regions of the Orion constellation, has long been proposed as one of the origins of single chirality. Herein, the CPL triggered asymmetric polymerization, photo-modulation of chirality based on polymers are described. The mechanisms between CPL and polymers (including polydiacetylene, azobenzene polymers, chiral coordination polymers, and polyfluorene) are described in detail. This minireview provides a promising flexible asymmetric synthesis method for the fabrication of chiral polymer via CPL irradiation, with the hope of obtaining a better understanding of the origin of homochirality on earth.
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