液晶羟基肟酸衍生物的热稳定性

IF 1.4 4区 化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
C. Sharma, N. Pandya, S. Shukla, Y. Agrawal
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引用次数: 0

摘要

采用光学显微镜和差示扫描量热法系统地研究了5种新合成的n- 4-烷氧基苯基-4′-正丁氧基肉桂羟肟酸的液晶行为。这些化合物表现出多种中间相,包括近晶相和纹影向列相。合成的化合物中,n- 4-正丁氧基苯基-4′-正丁氧基肉桂羟肟酸表现出最高的热稳定性。而n- 4-异丙氧基苯基-4′-正丁氧基肉桂羟肟酸的热稳定性相对较低。这项研究为分子结构和液晶行为之间的关系提供了有价值的见解,突出了末端烷氧基对羟肟酸热性能的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Thermal Stability of Liquid Crystalline Hydroxamic Acid Derivatives

Thermal Stability of Liquid Crystalline Hydroxamic Acid Derivatives

The liquid crystalline behaviour of five newly synthesized N-4-alkoxyphenyl-4'-n-butoxycinnamohydroxamic acids was systematically studied using optical microscopy and differential scanning calorimetry. These compounds demonstrated a variety of mesophases, including smectic and schlieren nematic phases. Among the synthesized compounds, N-4-n-butoxyphenyl-4'-n-butoxycinnamohydroxamic acid exhibited the highest thermal stability. In contrast, N-4-isopropoxyphenyl-4'-n-butoxycinnamohydroxamic acid showed comparatively lower thermal stability. This investigation provides valuable insights into the relationship between molecular structure and liquid crystalline behaviour, highlighting the influence of terminal alkoxy groups on the thermal properties of hydroxamic acids.

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来源期刊
Russian Journal of Physical Chemistry B
Russian Journal of Physical Chemistry B 化学-物理:原子、分子和化学物理
CiteScore
2.20
自引率
71.40%
发文量
106
审稿时长
4-8 weeks
期刊介绍: Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.
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