ABSTRACT

To convert carbohydrates into platform compounds, the deep eutectic solvent (DES) based on choline chloride and urea (molar ratio 1:2) was adopted as a green solvent. The physical properties of density, dynamic viscosity, conductivity and refractive index were determined for the mixture of D-glucose and DES including neat reline at a temperature from 293.15 K to 363.15 K at 101.3 kPa. The measured data of density, dynamic viscosity, conductivity and refractive index were correlated, respectively. Meanwhile, the molecular volume, standard molar entropy, lattice energy and free volume were calculated. The spectra of FTIR indicates that the hydrogen bond was changed in the mixture with increasing the content of D-glucose.

摘要

为了将碳水化合物转化为平台化合物，采用基于氯化胆碱和尿素（摩尔比 1:2）的低共熔溶剂（DES）作为绿色溶剂。在 293.15 K 至 363.15 K 和 101.3 kPa 的温度下，测定了 D-葡萄糖和 DES 混合物的密度、动态粘度、电导率和折射率的物理性质，包括纯重衬。密度、动态粘度、电导率和折射率的测量数据分别相关。同时计算了分子体积、标准摩尔熵、晶格能和自由体积。FTIR光谱表明，随着D-葡萄糖含量的增加，混合物中的氢键发生了变化。