Density, viscosity, surface tension and intermolecular interaction of triethylene glycol and 1,2-diaminopropane binary solution & its potential downstream usage for bioplastic production
Density, viscosity, surface tension and intermolecular interaction of triethylene glycol and 1,2-diaminopropane binary solution & its potential downstream usage for bioplastic production
复制标题
三甘醇和 1,2-二氨基丙烷二元溶液的密度、粘度、表面张力和分子间相互作用
DOI：
10.1016/j.molliq.2020.112804
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发表时间：
2020-05-15
影响因子：
6
通讯作者：
Fu, Jilagamazhi
中科院分区：
文献类型：
--
作者：
Jia, Xiaoqian;Zhang, Shuai;Fu, Jilagamazhi
In this work, triethylene glycol (TEG) and 12-diaminopropane (DAP) binary mixture was proposed as a novel CO2 capturing solution. In order to understand the binary system better, the key physical and chemical properties of TEG and DAP binary solution including the density, viscosity and surface tension were determined and analyzed. The excess molar volume (V-m(E)), viscosity deviation (Delta eta) and surface tension deviation (Delta gamma) of the solution were calculated and fitted by Redlich-Kister (R-K) equation to evaluate the factor and standard deviations between the experimental and calculated quantities. Meanwhile, the as-determined UV-Vis, FTIR, and Fluorescence spectra suggested that intermolecular hydrogen bonds were formed within the binary solution. In term of the excess molar volume, the intermolecular bonds were closely formed when the molar ratio of TEG to DAP was at 1: 1. This system showed strong CO2 capture capability, in which about 0.34 g CO2 was absorbed by per gram of DAP and TEG system. The resulting CO2-Storage Material (CO2 SM) was further applied as potential carbon source for Poly-beta-hydroxybutyrate (PHB, bioplastic) production by a photoautotrophic-cyanobacterium, and intracellular content of 12.92 wt% was achieved. This work used new biological methods to convert CO2, the fundamental, physical and chemical properties of the alcohol-amine system were studied, further, the basic data as the reference were provided for PHB downstream synthesis optimization. (C) 2020 Elsevier B.V. All rights reserved.
