INFLUENCE OF THE LOCATION OF SULPHATE GROUPS IN CELLULOSE SULPHATES ON STABILITY OF THEIR MACROMOLECULE

  • Нодирали Сохобаталиевич Нормахаматов Institute of Bioorganic chemistry of the Uzbek Academy of Sciences, H. Abdullaeva, 83, Tashkent, 100125 Email: nodirali@gmail.com
  • Ксения Михайловна Чуркина Institute of Bioorganic chemistry of the Uzbek Academy of Sciences, H. Abdullaeva, 83, Tashkent, 100125 Email: kseniya08@mail.ru
  • Аббасхан Сабирханович Тураев Institute of Bioorganic chemistry of the Uzbek Academy of Sciences, H. Abdullaeva, 83, Tashkent, 100125 Email: abbaskhan@mail.ru
DOI_disc_logo https://doi.org/10.14258/jcprm.1402061
Keywords: sodium cellulose sulfate, location of the substituted patterns, macromolecular stability, thermogravimetry.

Abstract

Obtaining of sulfuric ester samples with various molecular parameters from cotton cellulose and influence of the location of sulphate groups in anhydroglucopyranose units on their stability were presented in the article. The changes of molecular characteristics took place during one year storage of aqueous solution of the samples and thermo-gravimetrical analyses of their dry form have been studied. The results showed the samples with highly substitution degree by sulfate groups were more stable and most samples with substituted groups in 3rd OH-position showed the weakest stability. It was assumed that the non-substituted trans- hydroxyl groups in the anhydroglucopyranose unit could supposedly be responsible for the instability.

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Author Biographies

Нодирали Сохобаталиевич Нормахаматов, Institute of Bioorganic chemistry of the Uzbek Academy of Sciences, H. Abdullaeva, 83, Tashkent, 100125
старший научный сотрудник, кандидат химических наук, тел.: (+99871) 262-35-40, факс: (+99871) 262-70-63
Ксения Михайловна Чуркина, Institute of Bioorganic chemistry of the Uzbek Academy of Sciences, H. Abdullaeva, 83, Tashkent, 100125
младший научный сотрудник, тел.: (+99871) 262-35-40, факс: (+99871) 262-70-63
Аббасхан Сабирханович Тураев, Institute of Bioorganic chemistry of the Uzbek Academy of Sciences, H. Abdullaeva, 83, Tashkent, 100125
ведущий научный сотрудник, доктор химических наук, профессор, тел.: (+99871) 262-35-40, факс: (+99871) 262-70-63

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Published
2014-06-10
How to Cite
1. Нормахаматов Н. С., Чуркина К. М., Тураев А. С. INFLUENCE OF THE LOCATION OF SULPHATE GROUPS IN CELLULOSE SULPHATES ON STABILITY OF THEIR MACROMOLECULE // chemistry of plant raw material, 2014. № 2. P. 61-66. URL: http://journal.asu.ru/cw/article/view/jcprm.1402061.
Issue
No 2 (2014)
Section
Biopolymers of plants

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