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Structure of terminal units of polybutadiene synthesized via anionic mechanism

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Abstract

The structure of head and end groups of the polybutadiene synthesized by anionic polymerization of butadiene using tert-butyllithium as an initiator has been established using methods of NMR spectroscopy with T2-filter as well as 2D 1H, 13C HMBC and HSQC NMR spectroscopy. The spectral signals of head groups, which consist of tert-butyl groups connected with cis-1,4, trans-1,4 or 1,2-units of polybutadiene chain, were identified for the first time. A new method for the quantitative calculation of the content of head and end groups with different microstructures was proposed. It was shown that the total content of 1,4-units (both cis-1,4 and trans-1,4) in terminal groups is considerably higher than that in a main chain of polybutadiene.

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Authors and Affiliations

  1. Institute of Ecology of the Volga River Basin of the Russian Academy of Science, Samara Federal Research Scientific Center of the Russian Academy of Science, 10 Komzina St, Togliatti, Russia, 445003

    Victor A. Rozentsvet, Nelly A. Sablina & Daria M. Ulyanova

  2. Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya St, 220006, Minsk, Belarus

    Sergei V. Kostjuk

  3. Department of Chemistry, Belarusian State University, 14 Leningradskaya St, 220006, Minsk, Belarus

    Sergei V. Kostjuk

  4. Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2 Trubetskaya, Moscow, Russia, 119991

    Sergei V. Kostjuk

  5. Department of Chemistry, St.-Petersburg State University, 7–9 Universitetskaya nab., St.-Petersburg, Russia, 199034

    Peter M. Tolstoy

Authors
  1. Victor A. Rozentsvet
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  2. Nelly A. Sablina
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  3. Daria M. Ulyanova
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  4. Sergei V. Kostjuk
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  5. Peter M. Tolstoy
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Correspondence to Victor A. Rozentsvet.

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Rozentsvet, V.A., Sablina, N.A., Ulyanova, D.M. et al. Structure of terminal units of polybutadiene synthesized via anionic mechanism. Polym. Bull. 79, 1239–1256 (2022). https://doi.org/10.1007/s00289-021-03549-5

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  • DOI: https://doi.org/10.1007/s00289-021-03549-5

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