Team coverts polyethylene into fatty acids, soap’s main ingredient, but say it is not panacea for plastic pollution
Scientists have discovered a method to give new life to old plastic – by converting it into soap.
Plastics are chemically similar to fatty acids, which are one of the main ingredients in soap. For Guoliang Liu, an associate professor of chemistry at Virginia Tech and author of the paper published in the journal Science, this similarity suggested it should be possible to convert polyethylene into fatty acids, and then into soap. The problem was size: molecularly, plastics are very large, about 3,000 carbon atoms long, whereas fatty acids are much smaller.
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