Polydiketoenamine

Polydiketoenamine or PDK is a polymer discovered in 2019 that can be recycled over and over without loss of performance. Researchers at Lawrence Berkeley National Laboratory studied PDK and published the results of the study in Nature Chemistry in April 2019.[1] Submersion in an acidic solution breaks down the polymer to its original monomers and separates the monomers from additives.

References
  1. Peter R. Christensen; Angelique M. Scheuermann; Kathryn E. Loeffler & Brett A. Helms. "Closed-loop recycling of plastics enabled by dynamic covalent diketoenamine bonds". nature.com. Springer Nature Publishing AG. Retrieved 16 May 2019.


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