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Изучение методом спектроскопии ЯМР (1D и 2D) структуры и характера ассоциаций гиперразветвленного полиэфира полиола Boltorn h20-oh

Изучение методом спектроскопии ЯМР (1D и 2D) структуры и характера ассоциаций гиперразветвленного полиэфира полиола Boltorn h20-oh

Abstract

Методом одно- и двумерной спектроскопии ЯМР 1Н и 13С изучена структура гиперразветвленного полиэфира полиола BOLTORN H20-OH. Показано, что полиол имеет нестереорегулярную структуру. Выявлено три основных типа водородных взаимодействий (С=О…НО, ОН…ОН и С=О…НО…НО), носящих как внутри-, так и межмолекулярный характер.The structure of hyperbranched polyether polyol BOLTORN H20-OH was studied by 1D and 2D (NOESY) NMR spectroscopy and semi-empirical quantum-chemical calculations (method AM1). The polyol structure is shown not to be stereoregular. Three general types of hydrogen interactions (С=О…НО, ОН…ОН and С=О…НО…НО) of both intramolecular and intermolecular character were revealed.

Keywords

МАКРОМОЛЕКУЛА, ПОЛИОЛ, ГИРЕРРАЗВЕТВЛЕННЫЙ ПОЛИМЕР, ДЕНДРИМЕР, ОДНО- И ДВУМЕРНАЯ (NOESY) СПЕКТРОСКОПИЯ ЯМР, ХИМИЧЕСКИЙ СДВИГ, КРОСС-ПИК, ЗАМЕСТИТЕЛЬ, ПОЛУЭМПИРИЧЕСКИЕ КВАНТОВО-ХИМИЧЕСКИЕ РАСЧЕТЫ (МЕТОД АМ1), СТРУКТУРА, РАСТВОРИТЕЛЬ, NMR 1D AND 2D (NOESY), SEMIEMPIRICAL QUANTUM-CHEMICAL CALCULATIONS (METHOD AM1)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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