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Effect of crystallization on the mechanical properties of cellulose triacetate and acetosorbates

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Abstract

The results of an x-ray investigation of the crystallization of cellulose triacetate and acetosorbates with different degrees of esterification (from γc=3 to γc=12) are described. It is shown that the triacetate and the acetosorbates crystallize in the same way. In the amorphous state the strength of the acetosorbates is lower than that of the triacetate, but the former will withstand a greater number of double flexes. The modulus of elasticity decreases as γc increases. Crystallization has almost no effect on the strength of the cellulose triacetate and acetosorbates, but the elongation falls with increase in γc. The number of double flexes and the high-temperature modulus of elasticity sharply increase.

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Literature cited

  1. E. I. Berenshtein, B. I. Aikhodzhaev, and Yu. L. Pogosov, in: Chemistry and Physico-Chemistry of Natural and Synthetic Polymers [in Russian], Tashkent, No. 3, 1966.

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  4. B. I. Aikhodzhaev, Yu. L. Pogosov, L. V. Gurkovskaya, V. N. Kryazhev, G. Sh. Talipov, and E. I. Berenshtein, Authors Certificate USSR, No. 188949, 1965.

  5. J. Khonimen (editor), Advances in Cellulose and Starch Chemistry [Russian translation], IL, 1962.

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Authors
  1. F. A. Akhmedov
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  2. B. I. Aikhodzhaev
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  3. G. Sh. Talipov
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  4. V. M. Surovkin
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Additional information

Scientific-Research Institute of the Chemistry and Technology of Cotton Cellulose. Translated from Mekhanika Polimerov, Vol. 4, No. 5, pp. 783–786, September–October, 1968.

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Akhmedov, F.A., Aikhodzhaev, B.I., Talipov, G.S. et al. Effect of crystallization on the mechanical properties of cellulose triacetate and acetosorbates. Polymer Mechanics 4, 626–629 (1968). https://doi.org/10.1007/BF00855789

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  • DOI: https://doi.org/10.1007/BF00855789

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