α,ω-二元羧酸在N,N-二甲基甲酰胺+水溶液中的体积性质  

Volumetric properties of some α,ω-dicarboxylic acids in DMF + water mixtures

作　　者：白同春[1] 卢雁[1] 高文亮[1] 

机构地区：[1]河南师范大学化学与环境科学学院,河南新乡453002

出　　处：《河南师范大学学报（自然科学版）》2003年第4期51-60,79,共11页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目资助(29773011);河南省教育厅科学基金资助项目(20011500012)

摘　　要：报导了298.15K时α,ω 二元羧酸+N,N 二甲基甲酰胺+水溶液的密度数据,求解了二元羧酸的无限稀释表观摩尔体积,并利用了改进的定标粒子理论求解溶质的空腔体积Vc和溶质-溶剂相互作用体积VI.讨论了α,ω 二元羧酸中亚甲基数对体积性质的影响和溶液组成变化对体积性质的影响.Densities of the mixtures of six α,ω-dicarboxylic acids + N,N-Dimethylformamide + water at 298.15 K were measured, and the apparent molar volumes of acids at infinite dilution were obtained. The cavity volumes and interaction volumes between solute and solvent were calculated by a modified scaled particle theory. The effect of methylene group of α,ω-dicarboxylic acids on the volumetric properties, and the medium effect on it was discussed.

关 键 词：α ω-二元羧酸 N N-二甲基甲酰胺 表观摩尔体积 空腔体积 相互作用体积 定标粒子理论 

分 类 号：O623.613[理学—有机化学] O645.16[理学—化学]