How do you take polymer units and make monomer units?

To convert polymer units into monomer units, a process called depolymerization is used. This involves breaking down the long polymer chains into their individual monomer components, typically through chemical reactions such as hydrolysis, thermal degradation, or enzymatic processes. The specific method chosen depends on the type of polymer and desired efficiency of the reaction. By applying heat, catalysts, or solvents, the bonds between the monomer units in the polymer can be cleaved, resulting in the release of the original monomers.