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Topic: Dissolving Plexiglas (PMMA) in Aceetone and drying it  (Read 7848 times)

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Offline Kosmonaut

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Dissolving Plexiglas (PMMA) in Aceetone and drying it
« on: September 19, 2013, 08:36:02 AM »
Hello everyone,

I have dissolved some PMMA in Acetone.

My question is: when the Acetone evaporates, will dissolved PMMA return to its polymer state?

Thank you. 

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Offline curiouscat

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Re: Dissolving Plexiglas (PMMA) in Aceetone and drying it
« Reply #1 on: September 19, 2013, 08:52:46 AM »
They do use solvents for welding it.
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Offline Corribus

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Re: Dissolving Plexiglas (PMMA) in Aceetone and drying it
« Reply #2 on: September 19, 2013, 10:02:41 AM »
Quote from: Kosmonaut on September 19, 2013, 08:36:02 AM
I have dissolved some PMMA in Acetone.

My question is: when the Acetone evaporates, will dissolved PMMA return to its polymer state?
It never left the polymer state.  It was a polymer before you dissolved it; it is a polymer now in solution; and it will be a polymer when the solvent evaporates.
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What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Offline Enthalpy

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Re: Dissolving Plexiglas (PMMA) in Aceetone and drying it
« Reply #3 on: September 20, 2013, 06:42:39 PM »
Solvent is a good process for lacquers. You wanted to make a powder, didn't you? Less simple then; maybe with an aerosol.

You might also consider to polymerize MMA with UV light in a fluidized bed. No solvent then. But MMA vapour, which is nasty at the eyes.
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