Recyclable, sugar-derived foam — a renewable alternative to traditional polyurethanes? 

If we don’t bury ourselves under the mountains of plastic we’ve already created this coul be GREAT!

Marc A. Hillmyer and colleagues developed an efficient method to make a sugar-derived rubbery polyester compound called poly(β-methyl-δ-valerolactone), or PMVL, that can be used in new chemically-recyclable polyurethanes.

I’m sure you’ll recognize it from this illustration:

recyclablesu

 

Using this new polymer, the researchers made flexible polyurethane foams that were comparable in performance to commercial analogs. To test whether the foams could be recycled, the team first added a catalyst, then heated the materials to a high temperature. Through this process, the researchers recovered up to 97 percent of the starting β-methyl-δ-valerolactone (MVL) monomer in high purity.

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The researchers then used what they recovered to re-make PMVL with essentially identical properties.

Source: Recyclable, sugar-derived foam — a renewable alternative to traditional polyurethanes? – American Chemical Society

About Stan Flouride

THIS BLOG IS ALWAYS AD-FREE I make stuff and do things.
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