物理化学学报 >> 1998, Vol. 14 >> Issue (10): 898-905.doi: 10.3866/PKU.WHXB19981008

研究论文 上一篇    下一篇

葡萄糖、果糖和蔗糖在甲酰胺溶液中的体积性质

白同春, 韩世钧, 汤清虎, 卢雁, 卢锦梭   

  1. 浙江爱那个大学化学系,杭州 310027|河南师范大学化学系,新乡 453002
  • 收稿日期:1998-01-08 修回日期:1998-04-20 发布日期:1998-10-15
  • 通讯作者: 韩世钧

Volumetric Properties of Glucose,Fructose and Sucrose in Formamide

Bai Tong-Chun, Han Shi-Jun, Tang Qing-Hu, Lu Yan, Lu Jin-Suo   

  1. Department of Chemistry,Zhejiang University,Hangzhou 310027|Deoartment of Chemistry,Henan Normal University,Xinxiang 453002
  • Received:1998-01-08 Revised:1998-04-20 Published:1998-10-15
  • Contact: Han Shi-Jun

摘要:

报导了含葡萄糖、果糖和蔗糖的甲酰胺溶液的密度数据,无限稀释表观摩尔体积和体积第二维里系数.利用改进的定标粒子理论、基团几何模型和基团加合方法,求解了溶质的空腔生成体积,溶质-溶剂间的氢键作用对体积性质的影响,并和水溶液中的情况进行了比较.

关键词: 葡萄糖, 果糖, 蔗糖, 甲酰胺, 表观摩尔体积, 定标粒子理论, 几何结构模型, 基团加合

Abstract:

Densities of binary mixtures of glucose, fructose and sucrose with formamide solvent were measured at 298.15K. From these data, the apparent molar volumes of carbohydrates at infinite dilution were obtained. The cavity volume and the interaction volume between solute and solvent were evaluated by two methods. One is a modified scaled particle theory, which takes into account of the real molecular shape. Another is a combination of a geometrically consideration with a group additive approach, which can be used to analyze molecules of arbitrary shape. The calculated results by these two methods were compared with the results in water.

Key words: Glucose, Fructose, Sucrose, Formamide, Apparent molar volume, Modified scled partical theory, Geometrical structure, Group additive method