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Oranges a building block for ‘greener’ plastic

To create their new plastic, known as polylimonene carbonate, the scientists used molecules from two sources, carbon dioxide and limonene oxide, which comes from the peel of citrus fruits and other plants.

“Limonene has been around forever, carbon dioxide as well. What we’ve been able to do is devise this catalyst for the first time that allows these two small molecules to come together to make a plastic,” said Cornell chemistry professor Geoffrey Coates. The catalyst used in the chemical process is a compound that contains a small amount of zinc. The zinc in the catalyst is the type found in the common sunscreen zinc oxide.

Read the original article at: CNN

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