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Particle type
R
G
∝
M
α
Compact spheres
α
= 0.333
Random coils
α
= 0.5-0.6 (
θ
-solvent – good solvent)
Rigid rods
α
=1.0
This,
α
= 0.57 corresponds to the random coil region (data are actually
chitosan).
Here are two other examples of R
G
-M data obtained by SEC-MALLS
(obtained at NTNU):
Alginate (top) and pullulan (bottom)
Vold et al. Biomacromolecules, 7,
2136 (2006)
]
.
Triple-stranded scleroglucan (top) and cyclic
(renatured) scleroglucan (below).
Sletmoen et al. Carbohydr. Res. 340, 971
(2005)