The now rapidly developing field of bioplastics, plastic materials based on renewable resources, provides tremendous opportunities to sustain and enhance the domestic plastics industries, the fourth largest manufacturing sector. Growth in the use of these new, greener plastic is proceeding rapidly, however, there are a number of cases in which bioplastics lack the properties needed to compete with increasingly expensive petroleum based materials. Drawing on decades of scientific knowledge about polymer blends, as well as the new emerging field of polymer nanocomposites, these property limitations can be overcome. In this lecture, the development of novel polymer nanocomposites based on renewable cellulosic nanowhisker combined with various bioplastics is described. Time permitting, a new chemical route to novel hybridized reactively compatibilized bioplastic blends will also be described.