Studies on molecular interactions through thermophysical properties and FTIR analysis of binary systems of a green solvent furfuryl alcohol with 2-alkoxyethanols

IF 2.218 Q2 Chemistry Chemical Data Collections Pub Date : 2024-01-07 DOI:10.1016/j.cdc.2024.101115

K.A. Sasikala , G.Srinivasa Rao , P.V.S. Sairam , M. Silpa , K.Rayapa Reddy

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Abstract

The present paper provides the physiochemical properties of binary systems of a bio-derived, eco-sustainable solvent furfuryl alcohol with 2-alkoxyethanols. Speed of ultrasound (U), density (ρ) of pure liquids and binaries of furfuryl alcohol with 2-methoxyethanol, 2-ethoxyethanol and 2-butoxyethanol have been measured at four temperatures from 303.15 K to 318.15 K (with interval as 5 K). From the measured experimental data, excess free length ( $L_{f}^{E}$ ), excess volume per mole ( $V_{m}^{E}$ ) and isentropic compressibility deviation (∆κ_s) have been calculated. For fitting the data of excess parameters, Redlich-Kister polynomial equation has been used and the corresponding standard deviation is computed. The variations in the parameters under investigation indicated molecular associations among the components of the mixture. Partial molar studies have approved these results. Further, FTIR spectral analysis has been undertaken to confirm the interactions of furfuryl alcohol and 2-alkoxyethanols. The FTIR analysis is well agreed with the thermodynamic findings.

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通过对绿色溶剂糠醇与 2-烷氧基乙醇二元体系的热物理性质和傅立叶变换红外光谱分析研究分子相互作用

本文介绍了一种生物衍生、生态可持续溶剂糠醇与 2-烷氧基乙醇二元体系的理化特性。在 303.15 K 至 318.15 K 四种温度下（间隔为 5 K）测量了纯液体以及糠醇与 2-甲氧基乙醇、2-乙氧基乙醇和 2-丁氧基乙醇二元体系的超声波速度 (U)、密度 (ρ)。根据测得的实验数据，计算出了过量自由长度 (LfE)、每摩尔过量体积 (VmE) 和等熵压缩性偏差 (Δκs)。为了拟合过量参数数据，使用了 Redlich-Kister 多项式方程，并计算了相应的标准偏差。所研究参数的变化表明混合物各组分之间存在分子关联。部分摩尔研究证实了这些结果。此外，还进行了傅立叶变换红外光谱分析，以确认糠醇和 2-烷氧基乙醇之间的相互作用。傅立叶变换红外光谱分析与热力学研究结果完全吻合。

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来源期刊

Chemical Data Collections Chemistry-Chemistry (all)

CiteScore

6.10

自引率

0.00%

发文量

169

审稿时长

24 days

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