Hydrodynamic and conformational properties of cellulose valerate molecules in dilute solution

Autor:	S. V. Bushin, E. P. Astapenko, Albert K. Khripunov, M. A. Bezrukova
Rok vydání:	2009
Předmět:	chemistry.chemical_classification Polymers and Plastics Valeric acid Glycoside Valerate chemistry.chemical_compound Crystallography Sphere packing Monomer chemistry Helix Materials Chemistry Organic chemistry Molecule Cellulose
Zdroj:	Polymer Science Series A. 51:761-768
ISSN:	1555-6107 0965-545X
DOI:	10.1134/s0965545x09070025
Popis:	Using the methods of molecular hydrodynamics, structural-conformational studies have been performed for a number of cellulose valerate and acetovalerate samples in the molecular-mass range M = (58.1–464.3) × 103 and with a mean degree of substitution of 182.4 with respect to valeric acid isomers. The conformations of valerate-substituted cellulose molecules are characterized by an increased local packing density of monomer units. The molecular conformations are quantitatively described in terms of the helix formed by the succession of vectors connecting glycoside oxygens of a chain. The molecular-hydrodynamic and conformational characteristics of cellulose valerate are compared with the corresponding characteristics of cellulose myristate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4edeade32f2569b3c08850a24fb48f99 https://doi.org/10.1134/s0965545x09070025 Zobrazit plný text záznamu Full text from SpringerLink