Thank you for reply I really need a Polycarbonate and its proper solvent. The problem is that I can't make a solution with PC and Toluene(or PGMEA). So, I am looking for good solvent which dissolve the PC well, or lower Molecule weight of PC so that it sould be dissolved in Toluene or PGMEA. Thank you On 12/20/06, neal@zbzoom.netwrote: > Dear Stefano, > > What are you trying to do and does it have to be polycarbonate? I have > some other sources that may provide different MW than you have tried. > > There are many solvents to use but what problems do you have when you use > toluene or the other solvent you mentioned? > > There are many different polymers to use also so this is why I question > you? I can possibly help.