Symbols
A λ
Absorbance at wavelength λ
Đ
Dispersity (formerly polydispersity index) of a polymer
D t
Translational diffusion coefficient
M
Molar mass
hM n i
Number-average molar mass of a polymer
hM w i
Weight-average molar mass of a polymer
N A
Avogadro’s number
pI
Isoelectric point
P(r) or P r
Pair-distribution function
R
Gas constant
R g
Radius of gyration
R g
Radius of gyration at infinite contrast
R H
Hydrodynamic radius
R S
Stokes radius
s
Sedimentation coefficient
s 20,w
Sedimentation coefficient at 20
C in pure water
T
Absolute temperature
v
Specific volume
hX n i (formerly DPn) Number-average degree of polymerization
ΔG
Standard free energy difference
Δε
Molar circular dichroism
ε
Dielectric constant, extinction coefficient
η
Viscosity
[θ]
Ellipticity ([θ] ¼ 3298.2 Δε)
λ
Wavelength
μ
Standard chemical potential
ρ
Scattering length density or hydrodynamic density of a particle
ρ 0
Scattering length density or hydrodynamic density of a solvent
τ c
Rotational correlation time
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