Molecular Interaction and Hydration Properties of Aliphatic Biogenic Polyamines: Insights through Volumetric, Viscometric and Acoustic Investigations

IF 2 3区 工程技术 Q3 CHEMISTRY, MULTIDISCIPLINARY
Pranali Y. Umredkar, Vijay M. Tangde*, Niraj T. Khaty, Sneha T. Bankar and Sudhakar S. Dhondge, 
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引用次数: 0

Abstract

In context of understanding the precise biochemical and industrial mechanisms underlying the actions of the studied aliphatic biogenic polyamines, namely, putrescine dihydrochloride, cadaverine dihydrochloride, and spermine tetrahydrochloride, the present study systematically investigates the density, speed of sound, and dynamic viscosity data over a dilute concentration range of (0.02–0.2) mol·kg–1, a temperature range of (288.15–313.15) K and an atmospheric pressure of 1.013 × 105 Pa. The physiochemical properties of the aqueous polyamine solutions were assessed through volumetric and compressibility measurements along with viscous flow parameters. The density and speed of sound data were utilized to calculate apparent molal volume and isentropic compressibility, which were further extrapolated to infinite dilution to obtain the limiting values Vϕ0 and KS0 and the corresponding slopes Sv and Sk respectively. Thermal expansion and hydration behavior were also examined by computing the limiting apparent molal expansibility (Eϕ0) and hydration number (nH). The identification of Hepler’s constant (∂2Vϕ0/∂T2), B-coefficient, and dB/dT values highlight the structure-breaking and hydrophilic nature of the studied polyamines. The results, however, indicate that the observed hydration phenomenon cannot be attributed solely to their total charge or the electrostatic forces; hydrophobic hydration of the aliphatic chain segments also significantly contributes to the underlying mechanisms influencing their physiochemical behavior and molecular interactions with the water structure.

Abstract Image

脂肪族生物多胺的分子相互作用和水合性质:通过体积学、粘度学和声学研究的见解
为了了解所研究的脂肪类生物源多胺(即腐胺二盐酸、尸胺二盐酸和精胺四盐酸)作用的精确生化和工业机制,本研究系统地研究了在(0.02-0.2)mol·kg-1的稀浓度范围、(288.15-313.15)K的温度范围和1.013 × 105 Pa的大气压下的密度、声速和动态粘度数据。通过体积和压缩性测量以及粘性流动参数来评估多胺水溶液的物理化学性质。利用声音数据的密度和速度计算表观摩尔体积和等熵压缩率,并将其进一步外推到无限稀释,分别得到极限值Vϕ0和KS、ϕ0以及相应的斜率Sv和Sk。通过计算极限表观摩尔膨胀率(Eϕ0)和水化数(nH)考察了热膨胀和水化行为。Hepler常数(∂2Vϕ0/∂T2)、b系数和dB/dT值的识别突出了所研究的多胺的结构破坏和亲水性。然而,结果表明,观察到的水化现象不能仅仅归因于它们的总电荷或静电力;脂肪链段的疏水水化作用也对影响其理化行为和分子与水结构相互作用的潜在机制有重要影响。
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来源期刊
Journal of Chemical & Engineering Data
Journal of Chemical & Engineering Data 工程技术-工程:化工
CiteScore
5.20
自引率
19.20%
发文量
324
审稿时长
2.2 months
期刊介绍: The Journal of Chemical & Engineering Data is a monthly journal devoted to the publication of data obtained from both experiment and computation, which are viewed as complementary. It is the only American Chemical Society journal primarily concerned with articles containing data on the phase behavior and the physical, thermodynamic, and transport properties of well-defined materials, including complex mixtures of known compositions. While environmental and biological samples are of interest, their compositions must be known and reproducible. As a result, adsorption on natural product materials does not generally fit within the scope of Journal of Chemical & Engineering Data.
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