Department of Energy's scientists announced this week that they have designed a plastic that can be recycled over and over again. Researchers at the Lawrence Berkeley National Laboratory wrote in Nature Chemistry that they had designed new plastic, called polydiketoenamine or PDK, that could be disassembled down to the molecular level and reassembled into different shapes, textures or colors multiple times. Modern-day plastics are reinforced with chemicals to make them more resilient and often end up making the material more difficult to fully recycle. ..... < snip > < snip > ..... Even the most recyclable plastic is only being...