Исследование физических состояний бинарных систем вода—оксиэтилированный глицерин со степенью полимеризации n = 5 и 25 при температурах ниже 273 К методом криомикроскопии

• Date: 2007
• Main Authors: Животова, Е.Н., Кулешова, Л.Г., Зинченко, А.В., Чеканова, В.В.
• Format: Article
• Language: Russian
• Published: Видавничий дім "Академперіодика" НАН України 2007
• Subjects: Фізика
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/1735
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Исследование физических состояний бинарных систем вода—оксиэтилированный глицерин со степенью полимеризации n = 5 и 25 при температурах ниже 273 К методом криомикроскопии / Е.Н. Животова, Л.Г. Кулешова, А.В. Зинченко, В.В. Чеканова // Доп. НАН України. — 2007. — N 4. — С. 78–84. — назв. — рос.

Binary systems water — oxyethylated glycerol (OEG) with the polymerization degree n = 5 and 25 have been investigated by optical cryomicroscopy within the temperature range 173–273 K at a cooling rate of 30 K min–1 and a warming rate of 5 K min–1. Cryomicrographs demonstrating the morphology of the crystalline and/or amorphous phases at different contents of OEG depending on temperature on cooling or warming are given. It has been shown that the systems with low (0–45%) and medium (46–72%) contents of OEG (n = 5) crystallize, and the high OEG (n = 5)-content systems (73–100%) remain wholly amorphous. A similar situation is observed for the system water — OEG (n = 25) with insignificant differences in the concentration ranges. The fundamental distinction between the two systems consists in that the system water — OEG (n = 25) of the high OEG (n = 25) concentration (more than 77%) forms an ordered structure in contrast to the system water — OEG (n = 5).