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Specialty Chemistry Forums => Materials and Nanochemistry forum => Topic started by: Syentethai on May 15, 2008, 03:05:46 PM

Title: Styrene Monomer
Post by: Syentethai on May 15, 2008, 03:05:46 PM
So someone in my lab allowed styrene monomer to harden in a flask, and now we can't get the glass stopper out. We've tried using a micropipet to add toluene to dissolve it, but it doesn't seem to be working. Any ideas?
Title: Re: Styrene Monomer
Post by: Mitch on May 15, 2008, 04:08:20 PM
Toluene will dissolve polystyrene, just use a lot and keep at it. Let it sit in a toluene bath overnight in a fume hood if need be.
Title: Re: Styrene Monomer
Post by: P on May 16, 2008, 04:00:47 AM
Yea  -  let it soak in for for as long as it takes  -  even a a couple of days to let the solvent seep right into the gaps.
Title: Re: Styrene Monomer
Post by: Gerard on May 24, 2008, 02:07:14 PM
styrene monomer is a strong organic polymer of repeating units any phenol based material at exessive amount will readily dissolve toluene..
-artifial student
Title: Re: Styrene Monomer
Post by: DrCMS on May 24, 2008, 05:31:26 PM
styrene monomer is a strong organic polymer of repeating units any phenol based material at exessive amount will readily dissolve toluene..
-artifial student


Would you like to try again in English?
Title: Re: Styrene Monomer
Post by: Gerard on May 25, 2008, 12:09:01 PM
erratum:
styrene monomer is a strong organic polymer of repeating units any phenol based material at exessive amount will readily dissolve toluene..
-artifial student

the last word should be organic polymer of repeating units like monomer....
Title: Re: Styrene Monomer
Post by: DrCMS on May 27, 2008, 06:09:30 AM
erratum:
styrene monomer is a strong organic polymer of repeating units any phenol based material at exessive amount will readily dissolve toluene..
-artifial student

the last word should be organic polymer of repeating units like monomer....

No!
Styrene is a monomer.
Polystyrene is an organic polymer with repeating units.
Some polymers with phenyl groups will dissolve in toluene
Title: Re: Styrene Monomer
Post by: Gerard on May 27, 2008, 09:28:10 AM
erratum again...
a repeating monomer unit....
Title: Re: Styrene Monomer
Post by: PolymerKnowHow on May 28, 2008, 08:23:36 PM
You've probably gotten the stopper free by now, but you could have also heated the flask up to ~200 degC or so such that the viscosity of the polymer was more manageable.