Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 44, Issue 9, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.202200958
Keywords
artificial muscles; liquid crystalline crosslinkers; liquid crystalline networks; photoresponsive polymers; structural modifications
Categories
Ask authors/readers for more resources
Phase behavior of liquid crystalline molecules can be controlled through structural modification at the molecular level. Reduction in symmetry or increase in steric hindrance by substituents can lower the clearing temperature. Similar strategies can be used for liquid crystalline networks (LCNs) to tailor their properties for various applications.
Phase behavior modulation of liquid crystalline molecules can be addressed by structural modification at molecular level. Starting from a rigid rod-like core reduction of the symmetry or increase of the steric hindrance by different substituents generally reduces the clearing temperature. Similar approaches can be explored to modulate the properties of liquid crystalline networks (LCNs)-shape-changing materials employed as actuators in many fields. Depending on the application, the polymer properties have to be adjusted in terms of force developed under stimuli, kinetics of actuation, elasticity, and resistance to specific loads. In this work, the crosslinker modification at molecular level is explored towards the optimization of LCN properties as light-responsive artificial muscles. The synthesis and characterization of photopolymerizable crosslinkers, bearing different lateral groups on the aromatic core is reported. Such molecules are able to strongly modulate the material mechanical properties, such as kinetics and maximum tension under light actuation, opening up to interesting materials for biomedical applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available