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Thermosensitive, Reversibly Cross‐Linking Gels with a Shape “Memory”
Author(s) -
Samra Babinder K.,
Galaev Igor Yu.,
Mattiasson Bo
Publication year - 2000
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 - 10.1002/1521-3773(20000703)39:13<2364::aid-anie2364>3.0.co;2-j
Subject(s) - shape memory alloy , materials science , chemistry , chemical engineering , composite material , engineering
Small but perfectly formed : A three‐component copolymer can be transformed into a physically cross‐linked gel on heating, which can be moulded into the shape of the vessel. This gel collapses on further heating to give a shrunken, shape‐remembered gel (see picture), which is mechanically strong enough to be transported to another vessel. The gel is formed thermoreversibly and the miniaturized version of the original gel in the vessel can be resolubilized simply by cooling and the polymer recast into another form.