Abstract
Various methods were used to investigate the peculiarities of the structure of poly-1,3,4-oxadiazoles containing diphenyleneoxide and diphenylphthalide fragments in definite molar ratios in their chains. The presence of the phthalide grouping in the poly-1,3,4-oxadiazoles has a substantial effect on the structure and properties of the polymers: intensive disintegration of the structure occurs, and the glass temperature and solubility rise. The character of the disintegration of the structure of the polymers is symbatically related to the molar fraction of phthalide fragments in the polymer chain and leads to a decrease in the deformation strength properties.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1457–1463, November, 1971.
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Korshak, V.V., Berestneva, G.L., Vinogradova, S.V. et al. Investigation of the structure and properties of poly-1,3,4-oxadiazoles. Chem Heterocycl Compd 7, 1357–1362 (1971). https://doi.org/10.1007/BF00481095
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DOI: https://doi.org/10.1007/BF00481095