The hydrodynamic properties of sodium salts of sulphoethylcellulose in water

Autor:	L.A. Nud'ga, V.M. Yamshchikov, Ye.A. Plisko, V.S. Skazka, G.V. Tarasova, I.A. Strelina
Rok vydání:	1977
Předmět:	chemistry.chemical_compound chemistry Ionic strength Permeability (electromagnetism) Ionization Diffusion Inorganic chemistry Polyacrylic acid General Engineering Molecule Ionic bonding Cellulose
Zdroj:	Polymer Science U.S.S.R.. 19:2576-2581
ISSN:	0032-3950
DOI:	10.1016/0032-3950(77)90338-0
Popis:	The concentration dependence of the sedimentation and diffusion of the sodium salts of sulphoethyl cellulose (Na-SEC) was investigated using solutions of various ionic strength. It was found that these dependences are mainly affected by ionic charges. These values, when extrapolated to zero concentration, i.e. s 0 and D 0 , were found to be independent of ionic strength; this indicates considerable permeability of the Na-SEC molecules. Comparison of the concentration dependences of s and D found earlier for polyacrylic acid (PAA) showed that the effect of ionization on the consecutive movement of PAA (a flexible chain poly-ion) is of about the same type and magnitude as that for the Na-SEC.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ece2197832383a447a985c71e73b8e20 https://doi.org/10.1016/0032-3950(77)90338-0 Zobrazit plný text záznamu