Conformation of carboxymethylcellulose in cadoxen-water solutions

Diffusion, sedimentation and viscosity of carboxymethylcellulose (CMC) ( DS = 0.9 ±0.1, 28 000 ⩽ m ⩽ 380 000) were studied in cadoxen-water systems over a wide range of solvent composition. The results were interpreted according to the theory of hydrodynamic properties of worm-like chains. The equil...

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Bibliographic Details
Published in:Polymer (Guilford) 1990-02, Vol.31 (2), p.348-352
Main Authors: Lavrenko, P.N., Okatova, O.V., Tsvetkov, V.N., Dautzenberg, H., Philipp, B.
Format: Article
Language:English
Subjects:
Applied sciences
carboxymethylcellulose
Cellulose and derivatives
Exact sciences and technology
Natural polymers
Physicochemistry of polymers
polyelectrolyte effects
rigidity of polymers in solution
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Summary:Diffusion, sedimentation and viscosity of carboxymethylcellulose (CMC) ( DS = 0.9 ±0.1, 28 000 ⩽ m ⩽ 380 000) were studied in cadoxen-water systems over a wide range of solvent composition. The results were interpreted according to the theory of hydrodynamic properties of worm-like chains. The equilibrium rigidity of CMC in cadoxen-water was shown to be comparable to that of unsubstituted cellulose in the same solvent. On dilution of the cadoxen-CMC system with water, no charge effects became visible up to a dilution ratio of 10 parts by weight of water per 1 part by weight of cadoxen, but the equilibrium rigidity increased considerably. The conformational parameters of CMC were compared to those of other cellulose derivatives and some synthetic polymers.
ISSN:0032-3861
1873-2291
DOI:10.1016/0032-3861(90)90131-H