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采用反相气相色谱法 (IGC)测定了聚乙二醇 (PEG)的溶解度参数以及溶剂与 PEG相互作用的溶解焓、混合焓和蒸发焓。结果表明 :烷烃类溶剂溶解 PEG为吸热反应 ,是 PEG的非溶剂 ;甲苯、乙酸乙酯溶解 PEG为放热反应 ,是 PEG的良溶剂。所得结果与前文结论相一致
The solubility parameters of polyethylene glycol (PEG) and enthalpy of melting, enthalpy of mixing and enthalpy of enthalpy of the interaction between PEG and PEG were measured by reversed-phase gas chromatography (IGC). The results showed that PEG was an endothermic reaction when alkane solvent was dissolved and PEG was a non-solvent. Toluene and ethyl acetate dissolved PEG was an exothermic reaction and was a good solvent for PEG. The result is consistent with the previous conclusion