Healable,
Reconfigurable, Reprocessable Thermoset
Shape Memory Polymer with Highly Tunable Topological Rearrangement
Kinetics
Zizheng Fang
Ning Zheng
Qian Zhao
Tao Xie
10.1021/acsami.7b05713.s001
https://acs.figshare.com/articles/journal_contribution/Healable_Reconfigurable_Reprocessable_Thermoset_Shape_Memory_Polymer_with_Highly_Tunable_Topological_Rearrangement_Kinetics/5144146
The unique capability of topological
rearrangement for dynamic
covalent polymer networks has enabled various unusual properties (self-healing,
solid-state plasticity, and reprocessability) that are not found in
conventional thermosets. Achieving these properties in one network
in a synergetic fashion can open up new opportunities for shape memory
polymer. To accomplish such a goal, the freedom to tune topological
rearrangement kinetics is critical. This is, however, challenging
to achieve. In this work, two sets of dynamic bonds (urethane and
hindered urea) are incorporated into a hybrid network for synthesizing
shape memory poly(urea-urethane). By changing the bond ratio, networks
with highly tunable topological rearrangement kinetics are obtained.
Combining self-healing, solid-state plasticity, and reprocessability
in one such shape memory network leads to unusual versatility in its
shape-shifting performance.
2017-06-20 00:00:00
topological rearrangement
Tunable Topological Rearrangement Kinetics
plasticity
tune topological rearrangement kinetics
synergetic fashion
bond ratio
reprocessability
self-healing
shape memory network
shape memory polymer
covalent polymer networks
tunable topological rearrangement kinetics
shape-shifting performance
Reprocessable Thermoset Shape Memory Polymer