Dr. Moore from the University of Illinois at Urbana-Champaign has developed a method for enhancing the thermal stability of cyclic poly(phthalaldehyde) (“cPPA”). cPPA is a transient material which is capable of depolymerizing in response to a stimulus (e.g., acid, heat). Until now, the low degradation temperature of cPPA has precluded thermal processing of the material. Additionally, cPPA’s unpredictable stability and thermal degradation behavior prevented standardization. The inventors identified a method for stabilizing cPPA to enable thermal processing of the material. Thermal processing allows more complex architectures to be fabricated from cPPA, these architectures can then undergo triggered depolymerization to break down the material. Potential applications for this material include disappearing drones and lithography.
