Abstract
A novel method for the synthesis of star-shaped polyethylene glycols containing a calixarene branching center was proposed according to the “grafting onto” approach. Eight-armed star-shaped polyethylene glycol was synthesized starting from calix[8]arene octasulfonyl chloride and amino-functionalized linear polyethylene glycol. Molecular weight characteristics of this star-shaped polymer were estimated using gel permeation chromatography, sedimentation-diffusion analysis, and light scattering. The eight-armed structure of star-shaped polymer was confirmed by 1H NMR spectral data.
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The work was financially supported with the Scholarship from the President of the Russian Federation for young scientists and graduate students carrying out promising scientific research and developments in priority areas for modernization of the Russian economy in 2022–2024.
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Based on the proceedings of the XIX International Scientific and Practical Conference “New polymer composite materials. Mikitaev readings” (July 3–8, 2023, Elbrus, Russian Federation).
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, Vol. 73, No. 4, pp. 1065–1071, April, 2024.
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Blokhin, A.N., Kozina, N.D., Kirila, T.Y. et al. The synthesis of eight-armed star-shaped polyethylene glycol containing a calix[8]arene branching center. Russ Chem Bull 73, 1065–1071 (2024). https://doi.org/10.1007/s11172-024-4221-y
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DOI: https://doi.org/10.1007/s11172-024-4221-y