Performance polyamides built on a sustainable carbohydrate core

Performance polyamides built on a sustainable carbohydrate core

13 March 2024 | Lorenz P. Manker, Maxime A. Hedou, Clement Broggi, Marie J. Jones, Kristoffer Kortsen, Kalaiyarasi Puvanenthiran, Yildiz Kupper, Holger Frauenrath, Francois Marechal, Veronique Michaud, Roger Marti, Michael P. Shaver & Jeremy S. Luterbacher
This article demonstrates the sustainable production of performance polyamides using a carbohydrate core, specifically dimethyl glyoxylate xylose (DMGX), a stabilized carbohydrate derived from agricultural waste. The study reports a catalyst-free, melt polymerization method to synthesize amorphous polyamides with properties comparable to fossil-based semi-aromatic alternatives. Despite containing a carbohydrate core, these materials retain their thermomechanical properties through multiple rounds of high-shear mechanical recycling and can be chemically recycled. Techno-economic and life-cycle analyses suggest selling prices close to those of nylon 66 with a significant reduction in global warming potential (GWP) of up to 75%. The versatility of DMGX as a monomer in various material chemistries, similar to phthalate-based monomers, opens up large addressable markets, enhancing cost competitiveness during scaling. The process also co-produces stabilized lignin and cellulose pulp, further improving biomass utilization efficiency. Overall, this work showcases a sustainable and versatile approach to producing high-performance plastics from renewable feedstocks.This article demonstrates the sustainable production of performance polyamides using a carbohydrate core, specifically dimethyl glyoxylate xylose (DMGX), a stabilized carbohydrate derived from agricultural waste. The study reports a catalyst-free, melt polymerization method to synthesize amorphous polyamides with properties comparable to fossil-based semi-aromatic alternatives. Despite containing a carbohydrate core, these materials retain their thermomechanical properties through multiple rounds of high-shear mechanical recycling and can be chemically recycled. Techno-economic and life-cycle analyses suggest selling prices close to those of nylon 66 with a significant reduction in global warming potential (GWP) of up to 75%. The versatility of DMGX as a monomer in various material chemistries, similar to phthalate-based monomers, opens up large addressable markets, enhancing cost competitiveness during scaling. The process also co-produces stabilized lignin and cellulose pulp, further improving biomass utilization efficiency. Overall, this work showcases a sustainable and versatile approach to producing high-performance plastics from renewable feedstocks.
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