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Lateral Association of Cylindrical Nanofibers into Flat Ribbons Triggered by “Molecular Glue”
Author(s) -
Lee Eunji,
Kim JungKeun,
Lee Myongsoo
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200801496
Subject(s) - stacking , ethylene oxide , nanofiber , molecule , intercalation (chemistry) , alkyl , materials science , aqueous solution , poly ethylene , glue , oxide , polymer chemistry , crystallography , ethylene , chemical engineering , chemistry , composite material , polymer , organic chemistry , catalysis , engineering , copolymer , metallurgy
Sticking together : Diblock molecules containing a Y‐shaped aromatic segment with a linear poly(ethylene oxide) head and branched alkyl chains at the tail have been synthesized. Cylindrical fibers are formed by the aggregation of these molecules in aqueous solution (see picture). Intercalation of an aromatic guest induces lateral stacking of the aggregates to form flat ribbons and a dramatic change from a gel to a fluid solution.