Monomer Recovery from Biobased Polyurethane (20160238, Dr. Marc Hillmyer)
Polyurethane Synthesis from Biodegradable Polyesterol PMVL
Biobased and chemically recyclable polyurethane (PU) offers a greener alternative to petroleum derived polyols used in the synthesis of thermoplastic polyurethanes, flexible foams and elastomers. A new technique uses renewable and degradable β-methyl-δ-valerolactone (MVL), to create a bio-based PMVL (poly β-methyl-δ-valerolactone) polyol with similar mechanical properties and performance of petroleum-derived PU.
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MVL Monomer Recovery from Polyurethane Foam
Another innovative aspect of this technology is the ability to recycle PMVL foams to recover MVL monomer in high purity and yield. Recycling foam to monomer (instead of polyol) allows the recovered monomer to be polymerized into polyols of any desired molecular weight and functionality. Furthermore, solvent-free, room temperature polymerization of the recovered MVL can be used to synthesize PMVL.
Current non-degradable, petroleum-derived polyurethane products create a massive waste management problem. Biobased and chemically recyclable polyurethanes, together with the unique MVL recycling strategy, bypasses many of the technical challenges that plague chemical recycling of polyurethanes.
BENEFITS AND FEATURES:
- Biobased and chemically recyclable
- Similar mechanical properties and performance of petroleum-derived PU
- Recycle PMVL foams to recover MVL monomer
- Biobased and chemically recyclable polyurethane synthesis
- PMVL synthesis
- MVL recovery
- PMVL recycling
Phase of Development - Proof of concept