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Доповіді НАН України. – 2007. – N 11. – С. 81–87.
Исследование физических состояний водных растворов оксиэтилированных производных ацетамида со степенью полимеризации n = 1 и n = 7 ÷ 8 методом оптической криомикроскопии
Е.Н. Животова, Л.Г. Кулешова, А.В. Зинченко, В.В. Чеканова
Abstract
Ice crystal morphology in the binary systems
water – oxyethylated acetamide (OEA) with polymerization
degree n = 1 and 7 ÷ 8 is studied by optical
cryomicroscopy over the temperature range of 173–273 K.
Fine ice crystals are formed at low (20% w/w)
concentrations of OEA (n = 1 and 7 ÷ 8). Dendrites of
various orders are formed at medium concentrations (56%
w/w). The systems remain in a completely amorphous state at
high concentrations (80% w/w). One molecule of OEA
(n = 1) is able to strongly bind 3 water molecules, and
one molecule of OEA (n = 7 ÷ 8) is able to strongly bind
7–8 water molecules.
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