A 2	virial coefficient
b	scattering length
c	concentration
d	tube diamter
D	diffusion coefficient
GPC	gel permeation chromatography
HPLC	high pressure liquid chromatography
I(Q)	scattered intensity
kB	Boltzmann constant
KWW	Kohlrausch-Williams-Watts function or stretched exponential
LCCC	liquid chromatography at the chromatographic critical condition
M	molecular weight of the polymer
Mc	critical molecular weight at which entanglements effects are first observed
Me	entanglement molecular weight
Mo	molecular weight of polymer repeat unit
M w	weight average molecular weight
M z	z-average molecular weight
msd	mean-square displacement
NA	Avogadro’s number
Ni	degree of polymerisation of polymer i
nn	number average number of bonds
NMR	nuclear magnetic resonance
NSE	neutron spin echo
OM	Optical microscopy
PB	poly(butadiene)
PDMS	poly(dimethyl siloxane)
PEO	poly(ethylene oxide)
PS	poly(styrene)
P(Q)	form factor
Q	scattering vector or momentum transfer
QENS	quasielastic neutron scattering
Rg	radius of gyration
Rz	z-average radius of gyration
Rw	weight-average radius of gyration
<r2cm(t)>	centre of mass mean square displacement
SANS	small angle neutron scattering
SLD	neutron scattering length density
S(Q)	structure factor
S(Q,t)	intermediate scattering law
S(Q,ω)	dynamic structure factor
T	temperature
Ts	spinodal point
Z	number of entanglements
β	stretched exponent
χ	segment-segment interaction parameter
φI	volume fraction of polymer i
η	melt viscosity
ηs	solvent viscosity
ηo	zero-shear rate viscosity
λ	wavelength
ν	Flory exponent
νi	volume of repeat unit
νo	reference volume
θ	scattering angle
${\rho }_{bulk}$	density
σ	spring length of the Rouse model
τ	characteristic time
τe	Rouse relaxation time at the entanglement length Ne
τeff	effective time
τR	Rouse relaxation time
τrep	reptation time
ω	frequency
Ω	inverse correlation time
ξ	correlation length
(Δρ)2	neutron contrast factor