[ejnov]

I'm reading a research paper about the separation of polymers from CO2 during a manufacturing process. Are there any polar organic solvents that do not dissolve CO2 well (i.e. less than a few mg/L at RTP)? This will be very helpful for my research.

Thank You,

Ej

[zsinger]

You are likely confused.  I think you are speaking of SUPERCRITICAL fluid acting as an extraction media, which is it.  This can be seen in the de-caffenation of coffee beans.  If that is not what you were asking, sorry
               -Zack

[Archer]

How is the CO₂ contaminating the polymer? is it occluded in the polymer matrix?

If you are using LCO₂ or SCO₂ (as zsinger suggests) as a solvent then it is usually best to use an aprotic polar solvent and vacuum to pull the residue CO₂ out of solution.

If you are occluding CO₂ during processing though, any solvent is going to be harder to remove than a substance which is naturally a gas at STP.