@article{wong_biobased_composites_2020, 
author={Wong, T. and Behl, M. and Yusoff, N. and Li, T. and Wahit, M. and Ismail, A. and Zhao, Q. and Lendlein, A.},
title={Bio-based composites from plant based precursors and hydroxyapatite with shape-memory capability},
year={2020},
journal = {Composites Science and Technology},
volume = {194},
pages = {108138},
doi = {10.1016/j.compscitech.2020.108138},
abstract = {A series of bio-based composites consisting of degradable thermoset poly[xylitol-(1,12-dodecanedioate)] (PXD) and hydroxyapatite microparticles (HA) was prepared. Equimolar amounts of xylitol and 1,12-dodecanedioic acid were reacted under catalyst-free polyesterification and the synthesized composites (PXDHCy) consist HA particles ranging between 0 wt% and 20 wt%. Crystallinity of the polymer matrix decreased at low content of HA (5 wt%) as the microparticles hindered crystallization of 1,12-dodecanedioate segment and then increased when the content of HA was raised (from 10 wt% to 20 wt%) as the polymer chains crystallized on surface of microparticles. All PXD and PXDHCy are able to hydrolytically degrade with around 7 wt% to 20 wt% mass loss after 16 weeks incubation in water (rate depends on HA content). The capability of PXD and PXDHCy composites to keep a temporary shape after a deformation process correlated with the polymer crystallinity whereas the shape recovery was 99%. The switching temperatures of PXD and PXDHCy composites ranged around 50 °C (and correlated to the melting-transition temperature) and did not vary with the loading of HA. A prototype of PXDHCy composite smart fixation plug was demonstrated and showed excellent potential to be used as bio-based fixation device for household appliances.},
note = {Online available at: \url{https://dx.doi.org/10.1016/j.compscitech.2020.108138} (DOI). Wong, T.; Behl, M.; Yusoff, N.; Li, T.; Wahit, M.; Ismail, A.; Zhao, Q.; Lendlein, A.: Bio-based composites from plant based precursors and hydroxyapatite with shape-memory capability. In: Composites Science and Technology. Vol. 194 (2020) 108138. (DOI:  /10.1016/j.compscitech.2020.108138)}}