@misc{yang_synthesis_and_2012, 
author={Yang, K.K.,Zotzmann, J.,Lendlein, A.,Behl, M.},
title={Synthesis and Characterization of Hydroxy-telechelic Four-arm Star-shaped Oligo(tetrahydrofuran), Their Crosslinking, and Thermomechanical Investigation of the Poymer Network},
year={2012},
howpublished = {journal article},
doi = {https://doi.org/10.1557/opl.2012.453},
abstract = {Here the synthesis of hydroxy-telechelic four-arm star-shaped oligotetrahydrofuran (4PTHF) with controllable molecular weight was explored, which was perfomed as living cationic ring-opening polymerization of THF using pentaerythritol and trifluoromethanesulfonicanhydride as initiation system. The molecular weights of the 4PTHF were a function of the reaction time. A polymer network was prepared from the hydroxy-telechelic 4PTHF precursor by crosslinking with diisocyanate and the shape-memory properties were determined. High values for Rf and Rr > 98% were obtained even at high programmed elongations, which suggest the 4PTHF-network as a promising shape-memory material. These materials might have a great potential, as the upscaling of synthesis could be successfully demonstrated.},
note = {Online available at: \url{https://doi.org/10.1557/opl.2012.453} (DOI). Yang, K.; Zotzmann, J.; Lendlein, A.; Behl, M.: Synthesis and Characterization of Hydroxy-telechelic Four-arm Star-shaped Oligo(tetrahydrofuran), Their Crosslinking, and Thermomechanical Investigation of the Poymer Network. MRS Online Proceedings Library. 2012. vol. 1403, 190-195. DOI: 10.1557/opl.2012.453}}