Green Synthesis of Biodegradable Cross-linked Polymeric Materials

Because of their insulating and porous physical properties, polyurethanes are excellent materials for use in cushions and mattresses, insulation, packaging, acoustic absorbers and more. However, polyurethane synthesis requires catalysts, isocyanates and other agents which can be toxic and release concerning VOCs. In addition, recyclizing polyurethanes is difficult and requires either mechanical or chemical mechanisms which can be laborious and economically and environmentally costly. Subsequently, the majority of spent polyurethanes are simply disposed of in landfills.

 

Researchers at Arizona State University have developed a novel green chemistry approach for creating new bio-based cross-linked materials that can replace less environmentally friendly materials such as polyurethanes. This approach can be used to form a range of materials, from reagents and catalysts that are commercially available, having great versatility in foam properties from porous foams to hard gel-like compositions. Further, and more importantly, these new materials are biodegradable, chemically recyclable, and non-toxic.

 

This technology offers a novel, eco-friendly method to synthesize a variety of biodegradable materials that are suitable for cushioning, insulation and medical device applications.