@misc{zhao_shapememory_polymers_2013, 
author={Zhao, Q.,Behl, M.,Lendlein, A.},
title={Shape-memory polymers with multiple transitions: Complex actively moving polymers},
year={2013},
howpublished = {journal article},
doi = {https://doi.org/10.1039/c2sm27077c},
abstract = {Shape-memory polymers (SMPs) are able to perform shape transitions in a pre-defined pathway in response to suitable external stimuli such as heat, magnetism, electricity, moisture, or light. Most of the SMPs are dual-shape materials, which enable a single shape transition from a temporary to a permanent shape. Recently, triple-shape polymers (TSPs), which are capable of accomplishing two shape transitions, as well as multi-shape polymers with shape changes have been introduced including temperature-memory polymers (TMPs) with tunable multiple shape transitions. Different concepts for obtaining multi-shape polymers are introduced and the sophisticated structural design concepts in combination with tailored shape-memory creation processes (SMCPs) are explained. Future opportunities emerge in alternative actuation methods and exploration of potential applications.},
note = {Online available at: \url{https://doi.org/10.1039/c2sm27077c} (DOI). Zhao, Q.; Behl, M.; Lendlein, A.: Shape-memory polymers with multiple transitions: Complex actively moving polymers. Soft Matter. 2013. vol. 9, no. 6, 1744-1755. DOI: 10.1039/c2sm27077c}}