Twisted Helical Microfibers by Hierarchical Self-Assembly of an Aromatic Oligoamide Foldamer  

作　　者：Quan Gan Ying Wang Hua Jiang 

机构地区：[1]College of Chemistry, Beijing Normal University, Beijing 100875, China [2]Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

出　　处：《Chinese Journal of Chemistry》2013年第5期651-656,共6页中国化学（英文版）

基　　金：We thank the National Natural Science Foundation of China，the National Basic Research Program of China (Grant No.2009CB930802)for financial support

摘　　要：A series of aromatic oligoamide foldamers based on 8-fluoro amino-quinoline carboxyl acid have been synthe- sized and characterized. Studies show that these foldamers self-assemble to form well-defined twisted helical mi- crofibers in chloroform-methanol （1 ： 1, V/V） binary solvent due to the intermolecular π-π stacking and van der Waals forces of aliphatic chains, which are supported by SEM, TEM and XRD. It is also revealed that the assembly morphologies show strong dependence on the length of alkyl chains.A series of aromatic oligoamide foldamers based on 8-fluoro amino-quinoline carboxyl acid have been synthe- sized and characterized. Studies show that these foldamers self-assemble to form well-defined twisted helical mi- crofibers in chloroform-methanol （1 ： 1, V/V） binary solvent due to the intermolecular π-π stacking and van der Waals forces of aliphatic chains, which are supported by SEM, TEM and XRD. It is also revealed that the assembly morphologies show strong dependence on the length of alkyl chains.

关 键 词：FOLDAMER SELF-ASSEMBLY MICROFIBER hydrogen bonding aromatic stacking 

分 类 号：TQ342.72[化学工程—化纤工业] TB383[一般工业技术—材料科学与工程]