正构烷烃C19H40、C20H42和C21H44纳米水分散体的胶体稳定性

IF 0.8 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2025-09-16 DOI:10.1134/S0036024425701596

V. N. Kuryakov

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引用次数: 0

摘要

采用光学方法研究了正构烷烃C19H40、C20H42和C21H44在不同温度下的激光散射强度和动态光散射粒径，研究了正构烷烃C19H40、C20H42和C21H44纳米水相分散体的稳定性。实验表明，在不添加表面活性剂的情况下，超声分散得到的正构烷烃在水中的分散体在多次加热-冷却循环中是稳定的，在多次加热-冷却循环中，样品中的正构烷烃颗粒熔融结晶。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Colloidal Stability of Nanosized Aqueous Dispersions of n-Alkanes C19H40, C20H42, and C21H44

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Colloidal Stability of Nanosized Aqueous Dispersions of n-Alkanes C19H40, C20H42, and C21H44

The stability of aqueous nanosized dispersions of the n-alkanes C₁₉H₄₀, C₂₀H₄₂, and C₂₁H₄₄ was studied by the optical method, by measuring the laser scattering intensity and the particle size using dynamic light scattering at different temperatures. It was experimentally shown that the dispersions of n-alkanes in water obtained using ultrasonic dispersion without adding surfactants are stable to multiple heating–cooling cycles, during which the n-alkane particles in the sample melt and crystallize.

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来源期刊

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.