Elastocaloric effect in amorphous polymer networks undergoing mechanotropic phase transitions
Jeremy A. Koch,
Jeremy A. Herman,
Timothy J. White
Abstract:Deformations of amorphous polymer networks prepared with significant concentrations of liquid crystalline mesogens have been recently reported to undergo mechanotropic phase transitions. Here, we report that these mechanotropic phase transitions are accompanied by an elastocaloric response (∆T = 2.9 K). Applied uniaxial strain to the elastomeric polymer network transitions the organization of the material from a disordered, amorphous state (order parameter Q = 0) to the nematic phase (Q = 0.47). Both the magni… Show more
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