Methods of making layered mixed-metal phosphonates for high dielectric strength polymer nanocomposites

摘要

Multi-metal phosphonates are generally provided. The multi-metal phosphonate can generally have the composition: AB(RPO₃)₃, where A is Mg²⁺, Ca²⁺, Sr²⁺, Ba²⁺, Pb²⁺, La³⁺, or combinations thereof; B is Ti⁴⁺, Zr⁴⁺, Al³⁻, or combinations thereof; and R is an organic group (e.g., aryl group, an alkyl group, an alkenyl group, etc.). The multi-metal phosphonate can be combined with a polymeric material to form a polymeric film. Methods of making the multi-metal phosphonate by combining and reacting a metal oxide and an organophosphonic acid are also provided.