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Controlling Microstructure in Polymeric Molecular Shuttles: Solvent‐Induced Localization of Macrocycles in Poly(urethane/crown ether) Rotaxanes
Author(s) -
Gong Caiguo,
Gibson Harry W.
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199723311
Subject(s) - rotaxane , chloroform , crown ether , polymer chemistry , ether , solvent , microstructure , chemistry , materials science , molecule , organic chemistry , crystallography , supramolecular chemistry , ion
Localized at the NH group in chloroform , but forced away from the NH group in DMSO: This describes the behaviour of the cyclic units in poly(urethane/crown ether rotaxane)s. The dependency on the solvent results in different microstructures (shown schematically below).