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This article reviews a recent progress on the physical chemistry of cellulose and cellulose derivatives (CD) and their applications to some industrial fields. Average degree of substitution for each hydroxyl groups attached to carbon 2, 3, and 6 in a pyranose ring «fk» (k=2, 3, 6) could be estimated by 1H-and 13C-NMR methods and distribution of total degree of substitution...
The structural and mechanical properties of gels formed from biopolymers are discussed both in terms of the techniques used to characterise these systems, and in terms of the systems themselves. The techniques included are spectroscopic, chiroptical and scattering methods, optical and electron microscopy, thermodynamic and kinetic methods and rheological characterisation. The systems considered are...
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