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Aspen polymer phase equilibrium calculation

2016-08-01View Original

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I used Aspen to calculate the phase equilibrium of PMMA and CO2, employing the PC-SAFT equation of state, but I keep getting no results. . Neither the ebullioscopic point nor the cloud point yielded any results. If I choose PMMA as the polymer, he says that data on the chain segments is missing. The molecular weight of pure PMMA is only 100, which is just the molecular weight of one MMA monomer – is there something wrong with this? How to set the number of chain segments in a polymer? Or the actual molecular weight of the polymer? Please, experts, help me out. :'(

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