Alternating [1.1.1]Propellane‐(Meth)Acrylate Copolymers: A New Class of Dielectrics with High Energy Density for Film Capacitors.

Front Cover: Article 2200888 by Zhi‐Min Dang, Zi‐Chen Li, and co‐workers demonstrates the preparation of the alternating [1.1.1]propellane‐(meth) acrylate copolymers with controlled molar masses by spontaneous copolymerization. The rigid non‐conjugated bicyclo[1.1.1]pentane units in the backbone facilitate orientational polarization of side groups and ensure high breakdown strength of the copolymers. These copolymers exhibit promising energy storage properties and can be used as dielectrics for film capacitors in electric and electronic devices. [ABSTRACT FROM AUTHOR]