Framed aromatic polyurethanes based on an anionic macroinitiator, 4,4'-diphenylmethane diisocyanate, and 4,4'-dihydroxy-2,2-diphenylpropane: Metal-complex modification

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1134/S1560090417010055

Ключевые слова: Aromatic compounds, Aromatization, Chlorine compounds, Glycols, Metal complexes, Metals, Polymers, Polyurethanes, Concentration ranges, Diphenylmethane diisocyanate, Effective contact, Framed structure, Mechanical characteristics, Oxidation state, Partial reduction, Polyoxyethylene glycol, Iron compounds

Аннотация: Metal complexes are prepared from poly(oxyethylene glycol) and iron(III) chloride and studied as modifiers of framed aromatic polyurethanes. The latter polymers are synthesized on the basis of macroinitiators, 4,4'-dihydroxy-2,2-diphenylpropane, and polyisocyanate, which is a mixture of 4,4'-diphenylmethane diisocyanate and its branched derivatives. The interaction of iron(III) chloride with poly(oxyethylene glycol) is accompanied by redox processes that lead to its degradation and partial reduction of Fe(III) to Fe(II). Aromatic polyurethanes are modified in the concentration range of metal complexes from 0.5 to 20%. At a concentration of metal complexes of 4–7%, the polymer shows high mechanical characteristics and excellent thermal stability. The framed structure of aromatic polyurethanes hampers the effective contacts of coordinately bonded Fe atoms that are present in various oxidation states. © 2017, Pleiades Publishing, Ltd.

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Издание

Журнал: Polymer Science - Series B

Выпуск журнала: Vol. 59, Is. 1

Номера страниц: 69-79

Авторы

  • Davletbaeva I.M. (Кazan National Research Technological University, ul. Karla Marksa 68, Кazan, Russian Federation, Кazan (Volga Region) Federal University, Kremlevskaya ul. 18, Кazan, Russian Federation)
  • Zaripov I.I. (Кazan National Research Technological University, ul. Karla Marksa 68, Кazan, Russian Federation)
  • Karimullin R.R. (Кazan National Research Technological University, ul. Karla Marksa 68, Кazan, Russian Federation)
  • Gumerov A.M. (Кazan National Research Technological University, ul. Karla Marksa 68, Кazan, Russian Federation)
  • Davletbaev R.S. (Кazan National Research Technical University, ul. Karla Marksa 10, Kazan, Russian Federation)
  • Burmakina G.V. (Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, str. 24, Krasnoyarsk, Russian Federation, Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation)

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