Zobrazeno 1 - 10
of 38
pro vyhledávání: '"A.I. Gamzazade"'
Autor:
A.I. Gamzazade, S.M Nasibov
Publikováno v:
Carbohydrate Polymers. 50:339-343
Methods of potentiometry, turbidimetry, colorimetry, IR spectroscopy, and element analysis were used to investigate the conditions of formation and the properties of non-stoichiometric polyelectrolyte complexes of chitosan hydrochloride (CHC) and sod
Publikováno v:
Carbohydrate Polymers. 34:113-116
Chitosan sulfates prepared by different methods were analyzed by 13C NMR spectroscopy. It was shown that the sulfation conditions of chitosan essentially affect the position and degree of substitution with sulfate in derivatives of chitosan. Sulfated
Publikováno v:
Carbohydrate Polymers. 34:381-384
The possibility of deposition of lipoproteins from blood plasma by different chitosan sulfoderivatives has been demonstrated. The influence of structure, substitution degree and molecular weight of chitosan sulfates on lipoprotein sorption was studie
Publikováno v:
Polymer Science U.S.S.R.. 17:2015-2023
Processes of branching and crosslinking occurring during vacuum thermolysis of a polyarylate based on terephthalic acid and phenolphthalein are described from qualitative and quantitative standpoints. The Stockmayer-Schultz equation was used to deter
Autor:
A.I. Gamzazade, A.M. Vasserman, Ye.F. Titova, T.A. Aleksandrova, I.A. Simenel, S. V. Rogozhin, S.M. Nasibov
Publikováno v:
Polymer Science U.S.S.R.. 31:1578-1583
It is shown by a spin marker method that the segmental mobilities of chitozan sulphate, chitozan hydrochloride, and the initial chitozan in solutions are rather close and are not the reason for the differences in the viscosity characteristics of solu
Publikováno v:
Polymer Science U.S.S.R.. 27:964-971
Viscosity and electrochemical properties of chitosan hydrochloride were studied in a wide range of polymer concentration. Conditions were described of obtaining this polymer salt with reproducible properties. Based on results of measuring conductivit
Publikováno v:
Polymer Science U.S.S.R.. 17:2039-2043
A study has been made of aryl-aliphatic and wholly aromatic polyesters containing alcoholic fragments (phenolphthalein) during heating under vacuum conditions. It is shown that the aryl-aliphatic polyesters degrade under these conditions, and that pr
Publikováno v:
Polymer Science U.S.S.R.. 23:665-669
A study has been made of various factors (nature of the media, gegenions, etc.) influencing the viscosity of dilute chitosan solutions. A determining factor in the behaviour of these solutions is the ionic strength of the medium. It is proposed that
Publikováno v:
Polymer Science U.S.S.R.. 27:1321-1327
The process of alkaline deacetylation of chitin as a function of the concentration of alkali, temperature and reaction time has been investigated with study of the influence of the content of the protein and mineral substances in the chitin on the vi
Publikováno v:
Polymer Science U.S.S.R.. 30:607-614
The kinetic rules for the acidic hydrolysis of chitosan have been studied and the effective rate constants and activation energy of this process have benn calculated. It has shown that in homogeneous conditions, polymer homologues with an average MM