... into twogroups, that is, polyethylene(PE)-like and poly(ethyleneterephthalate) (PET) -like polymers. The biodegradablepolymers with a relatively large number of methylenegroups and planar ... application,biodegradable polymers are classified into three groups:medical, ecological, and dual application, while in termsof origin they are divided into two groups: natural andsynthetic. This review article ... bags,Six-pack ringsToiletry Diapers, Feminine hygieneproductsDaily necessities Refuge bags, CupsBiodegradable polyesters for medical and ecological applications1274.3.3 Annealing effectChanging...