Biopolimeri - novi ili stari materijali?

The article discusses the history of biological-based polymers (biopolymers) which begins almost 3,500 years ago until the 20th century. It mentions that the beginning of biopolymers was studied along with natural rubber. It notes that the bio-based polymers are considered as new materials that contains monomeric units covantly bonded to form large structures. It adds that the first polymeric materials are biological based produced by living organisms.