Intrinsically Thermally Conductive Macromolecules

Austin M. Evans

University of Florida

Thermal transport is a ubiquitous phenomenon with wide-reaching real-world relevance. Developing next-generation microelectronics, energy storage devices, and extreme-environment materials requires new multifunctional thermal insulators and conductors. A prevailing belief that polymeric materials are inherently thermally insulating (thermal conductivities of 0.1 – 0.3 W m^-1 K^-1) has disincentivized the exploration of these versatile synthetic materials in thermal management. I will show recently obtained evidence that challenges the paradigm that polymers are thermally insulating. The inherent stimuli responsivity of polymers also provides opportunities to create switchable thermal conductivities. I will conclude with a thought experiment on how results reveal a path forward for thermal conductivity transistors.