ABSTRACT
Group contribution theories can predict compound proper-
ties from their molecular structures and interactions ofmole-
cules in the mixture. The method is quite fast and does not
require the use of complicated computer algorithms.[21-26]
Group contribution theory was first developed for sim-
ple organic compounds. However, with the development of
the well-known lattice fluid (LF) theory,[27] prediction of
many temperature and pressure dependent physical proper-
ties has been made for simple organic compounds and
synthetic polymers. The theory requires the determination
of parameters, called “scaling constants,” for temperature,
pressure, and density.
