Published in
Royal Society of Chemistry, Soft Matter, 2(5), p. 308-310, 2009
DOI: 10.1039/b814278e
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Photoinduced bending of a coumarin-containing supramolecular polymer
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Abstract
An amorphous polymer bearing a number of H-bonded coumarin groups can display large bending towards incident UV light. Imbalanced surface stresses generated by the photocrosslinking of polymer chains occurring on the side of the film receiving the UV light are believed to cause the photoinduced deformation.