I was reading my copy of the vintage chemistry handbook and I noticed that it has a method for making a urea/formaldehyde resin. I am well aware of the fact that formaldehyde is a harmful substance and that some products made from condensation polymers made from it tend to release formaldehyde into the air. So I considered the question of what other aldehydes could be used.
I noticed quickly that glyoxal has been used as an alternative to formaldehyde, I find it an interesting idea as glyoxal is a very toxic aldehyde which is able to cross link biomolecules. Glyoxal can be used to kill germs. Here is a patent on the subject of these plastics. I hope to be able to write some more on the subject of this class of materials soon.
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