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Effect of Aliphatic Diols and Dicarboxylic Acids on the Properties of Ethylene Succinate Copolyesters

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Abstract

The properties of ethylene succinate copolymers containing aliphatic diols and dicarboxylic acids in an amount of 5 and 10 mol % as a third comonomer are studied. These copolymers are semicrystalline polymers, since their crystallinity is 1.5–2.0 times lower than that of poly(ethylene succinate). It decreases linearly with an increase in the weight content of the third comonomer. At the same time, the crystallinity of the polymers containing moieties of sebacic and decanedioic acids is significantly higher than that of other polymers. The elastic modulus of the polymers almost linearly depends on the weight content of the third comonomer. The introduction of diols in the composition of the polymers contributes to their strain hardening. The glass transition temperature of the polymers decreases with increasing length of the carbon skeleton of the comonomers. The rate of degradation of the copolymers in wet soil increases by 1.5–2.0 times relative to the rate of degradation of poly(ethylene succinate).

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ACKNOWLEDGMENTS

We are grateful to the Chemical Research Center for Collective Use of the Siberian Branch of the Russian Academy of Sciences for carrying out spectral and analytical measurements.

Funding

The study was carried out within the framework of the State Task for the Institute of Catalysis, Siberian Branch, Russian Academy of Sciences (project no. AAAA-A17-117041710082-8).

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Authors and Affiliations

  1. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    A. G. Potapov

  2. Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    I. K. Shundrina

Authors
  1. A. G. Potapov
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  2. I. K. Shundrina
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Correspondence to A. G. Potapov.

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Potapov, A.G., Shundrina, I.K. Effect of Aliphatic Diols and Dicarboxylic Acids on the Properties of Ethylene Succinate Copolyesters. Polym. Sci. Ser. A 61, 544–554 (2019). https://doi.org/10.1134/S0965545X19050146

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  • DOI: https://doi.org/10.1134/S0965545X19050146

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