Chemistry Reference
In-Depth Information
χ
(chi) Flory
Huggins interaction parameter
ω
(omega) frequency (rad/sec)
ω
shape factor
J
Diffusive mass flux
D
Fickian diffusion coefficient
γ
friction coefficient
ξ
(t)
fluctuating force
k
B
Boltzmann constant
R
n
position of a bead
U
potential energy
b
segmental length
ν
scaling factor
D
G
self-diffusion coefficient of the center of mass of a chain
λ
distance between two equilibrium positions
g
geometric factor
a
molecular diameter
γ
numerical factor to account for free volume overlaps
ν
minimum required size of a free volume hole
ν
f
total free volume
V
1
critical molar free volume
V
FH
specific free volume of a mixture
VðTÞ
specific volume of an equilibrium liquid
