5 years ago

Polymeric Tubular Aromatic Amide Helices

Polymeric Tubular Aromatic Amide Helices
Hui Wang, Dan-Wei Zhang, Zhan-Ting Li
Conjugated polymers may be induced by intra- and/or intermolecular non-covalent forces to fold into helical conformations. Helices formed by aromatic amide, hydrazide, and urea polymers possess a well-organized cavity and depth, which is defined by their degree of polymerization. Driving forces may be intramolecular hydrogen bonding and/or solvophobicity, or guest induction. The resulting long helices represent a new class of unimacromolecular dynamic tubular architectures that exhibit unique properties or functions in, for example, molecular recognition, chirality transfer, and ion transporting. The recent advances are highlighted here. The formation of helical tubes by aromatic amide, hydrazide, and urea-based polymeric foldamers, which may be driven by hydrogen bonding, solvophobicity, and/or coordination, and their properties or functions in molecular recognition, chirality transfer and ion transporting are outlined.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/marc.201700179

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