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Responsive Supramolecular Gels Constructed by Crown Ether Based Molecular Recognition
Author(s) -
Ge Zhishen,
Hu Jinming,
Huang Feihe,
Liu Shiyong
Publication year - 2009
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.200805712
Subject(s) - crown ether , supramolecular chemistry , molecular recognition , crown (dentistry) , ether , materials science , chemistry , polymer chemistry , molecule , organic chemistry , composite material , ion
Responsive supramolecular gels were constructed from crown ether terminated four‐arm star poly(ε‐caprolactone) (PCL–DB24C8) and dibenzylammonium‐terminated two‐arm PCL–DBAS (see scheme), exploiting the formation of pseudorotaxane linkages between crown ether and ammonium moieties. The resultant supramolecular gels exhibit thermo‐ and pH‐induced reversible gel–sol transition.