Abstract
The radiation degradation of the cellulose macromolecule has been studied by viscometry and it has been shown that the cleavage of the glycosidic bonds of the irradiated polymer takes place as a result of the transformation of primary radicals with an unpaired electron at C(in4). The values of Gd for temperatures of 77 and 300 K have been found to be 1.4 and 3.3, respectively. At 300 K, but not at 77 K, Gd reveals a dependence on the radiation dose, which is due to the presumed mechanism of the cleavage of the glycosidic bonds between the anhydroglucose units of the cellulose macromolecule as a result of γ-irradiation.
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A. S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 62 70 71. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 749–756, September–October, 1996. Original article submitted February 26, 1996.
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Sultanov, K., Turaev, A.S. Mechanism of the radiolytic transformation of cellulose. Chem Nat Compd 32, 728–733 (1996). https://doi.org/10.1007/BF01375125
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DOI: https://doi.org/10.1007/BF01375125