I heard there are two types of biodegradable plastic technology, one is oxo, the other is hydro.
maximum biodegradable plastics have a base in lactic acid. It has a carboxylic acid and a hydroxy on it, so it is polymerized. it fairly is the place i might start up. You destroy the ester bond, and it may decarboxylate.
Oxo-biodegradable okorder /