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A molecular engineering principle in which repeat units of fairly rigid fused bicyclic structure and alkenes, separated by freely rotating single bonds, is proposed by Gregory A. Sotzing, Yang Cao, and published as a cover highlight of the May 26th Issue of Advanced Materials in article number 2000499, led by Dr. Chao Wu, a PDF at EIRC, and Ajinkya Deshmukh, a Polymer Program PhD student for energy storage at elevated temperatures.

The piston‐like crankshaft structure endows the system with a large bandgap of ≈5eV and flexibility, while being temperature‐invariantly stable. The piston/pendant allows engineering for temperature‐invariant dipolar polarization for energy storage. As part of a UConn lead MURI program, the design strategy uncovered in this work reveals a hitherto unexplored space for the design of scalable and efficient polymer dielectrics for electrical power and electronic systems under concurrent harsh electrical and thermal conditions.