Process could make key biodegradable polymer stronger and longer-lasting

Polylactic acid, or PLA, is a biodegradable polymer commonly used to make a variety of products from disposable cups to medical implants to drug delivery systems. A team of Brown University researchers has shown that by treating PLA at various temperatures and pressures, they can induce a new polymer phase in the material—one that could possibly decrease the rate at which it degrades.

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