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Supramolecular Controlled Water Uptake of Macroscopic Materials by a Cyclodextrin‐Induced Hydrophobic‐to‐Hydrophilic Transition
Author(s) -
Peters Oliver,
Ritter Helmut
Publication year - 2013
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.201301286
Subject(s) - cyclodextrin , aqueous solution , supramolecular chemistry , swelling , glass transition , polymer , polymer science , chemical engineering , chemistry , swell , computer science , polymer chemistry , materials science , nanotechnology , organic chemistry , thermodynamics , molecule , physics , engineering
A swell memory : Samples of adamantyl‐modified cross‐linked hydrophilic polymers were swollen in water or aqueous cyclodextrin solution. The cyclodextrin dramatically enhanced the swelling (see picture). If the materials were twisted after heating above their glass‐transition temperature and swollen in aqueous cyclodextrin solution, a shape‐memory effect was observed.