%0 book part
%@ 
%A Behl, M.,Zotzmann, J.,Lendlein, A.

%D 2010
%J Advances in Polymer Science - Shape-memory Polymers
%N 
%P 1-40 
%R doi:10.1007/12_2009_26
%T Shape-Memory Polymers and Shape-Changing Polymers
%U https://doi.org/10.1007/12_2009_26
 
%X The ability of polymers to respond to external stimuli is of high scientific and technological significance. In the last few years, research activities have been intensified substantially, exploring whether stimuli-sensitive polymers can be designed that move actively. In this review actively-moving materials were classified according to the underlying mechanisms enabling the shape changes: shape-memory polymers and shape-changing polymers / shape-changing gels were identified. The application spectra of these materials as well as the current developments were elucidated and general molecular design principles presented. When applicable, a further distinction according to the applied stimulus was made.