Hyo Won Lee, Ji Yeong Lee, Lars Borchardt and Jeung Gon Kim
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引用次数: 0
Abstract
This study presents a sustainable strategy for the chemical recycling of bisphenol A polycarbonate (BPA-PC) via amine-induced depolymerization under solvent- and catalyst-free conditions. Comparative investigations of thermal and mechanochemical protocols revealed that BPA-PC undergoes efficient cleavage in the presence of only amines, yielding the bisphenol A (BPA) monomer and high-value urea derivatives. Importantly, the catalyst-free protocol proved to be highly effective for post-consumer BPA-PC waste containing additives and contaminants. Direct aminolysis of commercial items—including safety goggles, compact discs, and automotive components—achieved high depolymerization efficiency, enabling quantitative recovery of both monomers and urea products. The operational simplicity, broad substrate tolerance, and high efficiency underscore the environmental and economic advantages of this green approach for BPA-PC recycling.
期刊介绍：
Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.
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