Concerning Synthesis of New Biobased Polycarbonates with Curcumin in Replacement of Bisphenol A and Recycled Diphenyl Carbonate as Example of Circular Economy.

Curcumin (CM) is a natural polyphenol wellknown for its antioxidant and pharmaceutical properties, that can represent a renewable alternative to bisphenol A (BPA) for the synthesis of biobased polycarbonates (PC). In the presented strategy, preparation of the CMbased PC was coupled with chemical recycling of the fossilbased BPA polycarbonate (BPAPC) conducting a twosteps transpolymerization that replaces BPA monomer with CM or its tetrahydrogenated colorless product (THCM). In the first step of synthetic strategy, depolymerization of commercial BPAPC was carried out with phenol as nucleophile, according to our previous procedure based on zinc derivatives and ionic liquids as catalysts, thus producing quantitatively diphenyl carbonate (DPC) e BPA.

Cre8™ Unique Technology in Challenging Daily Practice: Proceedings of a satellite symposium held at EuroPCR on 20th - 23rd May 2014 in Paris.

The use of drug-eluting stents (DES) has improved clinical outcomes in percutaneous coronary intervention (PCI) procedures. However, first-generation DES were associated with safety concerns arising from the persistence of durable polymers, including late stent thrombosis. The Cre8™ DES is a novel polymer-free stent designed to overcome these issues.