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Twisted Helical Microfibers by Hierarchical Self‐Assembly of an Aromatic Oligoamide Foldamer
Author(s) -
Gan Quan,
Wang Ying,
Jiang Hua
Publication year - 2013
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201300240
Subject(s) - foldamer , chemistry , stacking , van der waals force , intermolecular force , chloroform , solvent , microfiber , alkyl , crystallography , trimer , self assembly , polymer chemistry , stereochemistry , organic chemistry , molecule , dimer
A series of aromatic oligoamide foldamers based on 8‐fluoro amino‐quinoline carboxyl acid have been synthesized and characterized. Studies show that these foldamers self‐assemble to form well‐defined twisted helical microfibers 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.