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[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]

ORNL team develops better moldable thermoplastic by using lignin; 50% renewable content

March 23, 2016

Researchers at Oak Ridge National Laboratory (ORNL) have developed a new class of high-performance thermoplastic elastomers for cars and other consumer products by replacing the styrene in ABS (acrylonitrile, butadiene and styrene) with lignin, a brittle, rigid polymer that, with cellulose, forms the woody cell walls of plants.

In doing so, they have invented a solvent-free production process that interconnects equal parts of nanoscale lignin dispersed in a synthetic rubber matrix to produce a meltable, moldable, ductile material that’s at least ten times tougher than ABS. The resulting thermoplastic—called ABL for acrylonitrile, butadiene, lignin—is recyclable, as it can be melted three times and still perform well. The results, published in the journal Advanced Functional Materials, may bring cleaner, cheaper raw materials to diverse manufacturers.

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Stanford team devises new bio-inspired strategy for using CO2 to produce multi-carbon compounds such as plastics and fuels

March 10, 2016

Researchers at Stanford University have devised a new strategy for using CO2 in the synthesis of multi-carbon compounds. They first have applied their technology to the production of a plastic—a promising alternative to polyethylene terephthalate (PET) called polyethylene furandicarboxylate (PEF)—but are now working to apply the new chemistry to the production of renewable fuels and other compounds from hydrogen and CO2.

Matthew Kanan, an assistant professor of chemistry at Stanford, and his Stanford colleagues described the process and their results in synthesizing PEF in a paper in the journal Nature.

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