Green materials are composed of renewable resources. Green materials are environmentally liable due to their impacts were considered over the life of a product. The concepts of green materials build from the field of green chemistry, the utilization of its principles to reduce or eliminate hazardous substances in the design, manufacture and application of chemical products. At the basic level, research in green materials looks to develop alternatives to conventional materials or processes that offer an environmental advantage. The focus of Green Materials relates to synthesis, development, rheology and application of renewable or biodegradable polymers and materials, with an emphasis on reducing the use of hazardous substances in their design, manufacture and application of products.