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Abstract <p>Complex polyester urethanes in multicomponent solvents were used as examples for demonstrating the wide possibilities for regulating the morphology of highly-polymeric condensation structures, which were prepared with the aid of diffusional enrichment of these solutions with a nonsolvent. Dynamic light scattering was used to determine the sizes and conformation of the solution elements that determine the diversity of the resulting structures. The obtained results provided the possibility to make the conclusions about the specific features of these structures. When multicomponent solvents are used, the uncertainty of both the compositions and properties of the released phases does not yet make it possible to determine their size via this method.</p>

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Phase Equilibrium and Structure of Polyester Urethane Solutions in Multicomponent Solvents

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • T. A. Vorob’eva,
  • V. V. Matveev,
  • A. E. Chalykh

摘要

Abstract

Complex polyester urethanes in multicomponent solvents were used as examples for demonstrating the wide possibilities for regulating the morphology of highly-polymeric condensation structures, which were prepared with the aid of diffusional enrichment of these solutions with a nonsolvent. Dynamic light scattering was used to determine the sizes and conformation of the solution elements that determine the diversity of the resulting structures. The obtained results provided the possibility to make the conclusions about the specific features of these structures. When multicomponent solvents are used, the uncertainty of both the compositions and properties of the released phases does not yet make it possible to determine their size via this method.