Determination of Phase Transition Temperatures of Nanosized n-Hexacosane (n-C26H54) Particles in Aqueous Dispersion by an Optical Method

IF 0.9 4区化学 Q4 CHEMISTRY, PHYSICAL

High Energy Chemistry Pub Date : 2023-12-23 DOI:10.1134/s0018143923080143

V. N. Kuryakov

引用次数: 0

Abstract

This paper presents the results of studies on the phase behavior of a nanosized aqueous dispersion of n-hexacosane (n-C₂₆H₅₄) using dynamic and static light scattering methods. The melting, crystallization, and rotator phase temperatures of particles of the test n-alkane were determined. A decrease in the melting temperature by 0.2°C and a decrease in the crystallization temperature by 14°C were observed for n-hexacosane (n-C₂₆H₅₄) particles with a size of no greater than 100 nm. The particles of the test n-alkane also exhibited an additional rotator phase, which was not observed in the bulk sample.

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用光学方法测定水分散体中纳米级正二十六烷（n-C26H54）颗粒的相变温度

摘要本文介绍了采用动态和静态光散射方法对正二十六烷（n-C26H54）的纳米级水分散体的相行为进行研究的结果。研究测定了测试正构烷颗粒的熔化、结晶和旋转相温度。观察到粒径不大于 100 纳米的正二十六烷（n-C26H54）颗粒的熔化温度降低了 0.2°C，结晶温度降低了 14°C。测试正构烷烃的颗粒还表现出一种额外的旋转相，这在块状样品中没有观察到。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Energy Chemistry 化学-物理化学

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： High Energy Chemistry publishes original articles, reviews, and short communications on molecular and supramolecular photochemistry, photobiology, radiation chemistry, plasma chemistry, chemistry of nanosized systems, chemistry of new atoms, processes and materials for optical information systems and other areas of high energy chemistry. It publishes theoretical and experimental studies in all areas of high energy chemistry, such as the interaction of high-energy particles with matter, the nature and reactivity of short-lived species induced by the action of particle and electromagnetic radiation or hot atoms on substances in their gaseous and condensed states, and chemical processes initiated in organic and inorganic systems by high-energy radiation.