Chemistry Reference
In-Depth Information
Fig. 8 Liquid liquid equilibrium of the polyethylene (LDPE)/ethene system as function of
polymer molecular weight. Polymer weight fraction is about 5 wt%.
Symbols
represent experi
mental cloud points (Latz and Buback, 2002, personal communication),
lines
show predictions
with PC SAFT. All polymers were assumed to be monodisperse
Fig. 9 Cloud point data of different polyethylene (LDPE)/solvent systems.
Symbols
represent
experimental data [
48
,
49
].
Lines
show PC SAFT calculations [
26
]
Thus, calculations for ternary systems are usually pure predictions (unless binary
parameters were determined by fitting to ternary data, which is sometimes done).
Figure
10
shows the modeling results for the ternary system poly(methylmetha-
crylate) (PMMA)/methylmethacrylate (MMA) /carbon dioxide [
45
]. At pressures
