Polystyrene goes green?

Researchers at Wageningen University in the Netherlands and research institute Wageningen UR Food & Biobased Research, are collaborating with four companies - BASF, GreenICT, Synbra and DSM -on the development of various processes to produce styrene and acrylic acid from plant materials for the very first time.

Styrene and acrylates are two of the most widely used bulk chemicals in the world, and they are presently being produced from fossil sources.  In the research project, 'Acrylic and Styrenic Monomers and Polymers from Biomass' work is ongoing to derive these bulk chemicals from plant-based sugars and protein-rich residual biomass, which are released during the production of biofuels, feedstocks that would otherwise be waste streams.
Residual biomass is a byproduct of the production of biofuel, which is a sustainable alternative to fossil fuel. This residual biomass is cheap and contains up to 35% protein after the production of biofuel. These proteins are converted into styrene and acrylates via a two-step process involving an enzymatic and a catalytic reaction. A second research theme is the production of acrylic acid from sugars via fermentation, combined with a catalytic reaction.

Using biomass has the advantage that the process is not dependent on a single crop: various routes are available to produce the monomers. These green chemical building blocks can then be used, for example, to produce optical fibers and polystyrene, one of the most widely used plastics today. Ubiquitous in daily life, polystyrene, a thermoplastic with good processing properties, is used in many applications, including food packaging, domestic appliances, electronic goods, toys, household goods and furniture. "The properties of green polystyrene are exactly the same as conventional, petroleum-based polystyrene", said Christiaan Bolck. "The same end-of-life options apply, which means it's important to develop solutions - waste collection systems, feedstock recycling - to close the technological cycle."


 This still on research phase, and marketable results are not expected for another 4 to 6 years,

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