Compatibilization in bio-based and biodegradable polymer blends

► Exact definitions related to biopolymers, renewable resources and biodegradability are provided. ► The various modification approaches are reviewed. ► We describe the factors determining miscibility and compatibility of biopolymer blends. ► Available methods for the compatibilization of biopolymer blends are critically reviewed. ► We describe the current use of biopolymer and hybrid blends including advanced biomedical applications.