Abstract
The molecular–topological structure of a terpolymer based on vinylidene fluoride, hexafluoropropylene, and tetrafluoroethylene has been studied for the first time with the use of thermomechanical spectrometry. A five-block topologically amorphous and crystalline pseudo-network structure with crystallites, which have different initial melting temperatures, as branching points has been detected in the terpolymer at temperatures from–100 to 250°C. When γ-irradiated at a dose of 30 kGy, the crystalline blocks of high-temperature modifications assimilated into one cluster block with the formation of a pseudo-network with a 1.5fold increase in the block-average molecular weight and a decreased initial molecular flow temperature.
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Original Russian Text © Yu.A. Ol’khov, S.R. Allayarov, U.Yu. Allayarova, D.A. Dixon, 2016, published in Khimiya Vysokikh Energii, 2016, Vol. 50, No. 2, pp. 107–114.
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Ol’khov, Y.A., Allayarov, S.R., Allayarova, U.Y. et al. Effect of γ-irradiation on the molecular-topological structure of Viton® fluoroelastomers. High Energy Chem 50, 101–108 (2016). https://doi.org/10.1134/S0018143916010045
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DOI: https://doi.org/10.1134/S0018143916010045