Результаты исследований: Научные публикации в периодических изданиях › статья
Hydrodynamic behavior of quaternized chitosan at acidic and neutral pH. / Yevlampieva, N.P.; Gubarev, A.S.; Gorshkova, M.Y.; Okrugin, B.M.; Ryumtsev, E.I.
в: Journal of Polymer Research, № 9, 2015.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Hydrodynamic behavior of quaternized chitosan at acidic and neutral pH
AU - Yevlampieva, N.P.
AU - Gubarev, A.S.
AU - Gorshkova, M.Y.
AU - Okrugin, B.M.
AU - Ryumtsev, E.I.
PY - 2015
Y1 - 2015
N2 - © 2015, Springer Science+Business Media Dordrecht.The study is devoted to estimation of the effect of quaternization on the molecular properties of polysaccharide chitosan. Solution properties of quaternized chitosan derivative, N-[(2-hydroxy-3-trimethylammonium)propyl]chitosan, have been studied in comparison with the initial chitosan in 0.33М СН3СООН + 0.2М CH3СООNa. The averaged quaternization degree of the modified samples was (90 ± 5) %. Hydrodynamics methods, translation isothermal diffusion and viscometry, and static/dynamic light scattering were applied for characterization of two homologues series of chitosans. The equilibrium chain rigidity value and Mark–Kuhn–Houwink relationships for intrinsic viscosity and diffusion coefficient have been received for the both polysaccharides at pH 3.54 and high ionic strength value. A change of thermodynamic conditions in the same solvent was detected for the modified chitosan in relation to initial analog. Even though the side substituents
AB - © 2015, Springer Science+Business Media Dordrecht.The study is devoted to estimation of the effect of quaternization on the molecular properties of polysaccharide chitosan. Solution properties of quaternized chitosan derivative, N-[(2-hydroxy-3-trimethylammonium)propyl]chitosan, have been studied in comparison with the initial chitosan in 0.33М СН3СООН + 0.2М CH3СООNa. The averaged quaternization degree of the modified samples was (90 ± 5) %. Hydrodynamics methods, translation isothermal diffusion and viscometry, and static/dynamic light scattering were applied for characterization of two homologues series of chitosans. The equilibrium chain rigidity value and Mark–Kuhn–Houwink relationships for intrinsic viscosity and diffusion coefficient have been received for the both polysaccharides at pH 3.54 and high ionic strength value. A change of thermodynamic conditions in the same solvent was detected for the modified chitosan in relation to initial analog. Even though the side substituents
U2 - 10.1007/s10965-015-0802-7
DO - 10.1007/s10965-015-0802-7
M3 - Article
JO - Journal of Polymer Research
JF - Journal of Polymer Research
SN - 1022-9760
IS - 9
ER -
ID: 4002388