有机同系物表面张力递变规律研究  

Regularity of surface tensions for homologous organic compounds

作　　者：李宝宗[1] 国永敏[1] 

机构地区：[1]苏州大学化学化工系,江苏苏州215006

出　　处：《分子科学学报》2001年第3期166-169,共4页Journal of Molecular Science

摘　　要：以有机同系物结构重复单元数值连续变化为模型 ,获得了描述有机同系物表面张力递变规律的数学表达式 :σ=(a0 +a1n +a2 n2 ) / (1+b2 n2 ) ,其中a0 ,a1,a2 ,b2 均为常数 ,n为结构重复单元数值 ,σ为同系物的表面张力 .通过非线性回归分析 ,得到回归方程 .结果表明 ,各类有机同系物的表面张力与重复单元数值满足上述关系式 。With the model that the number of repeating units of the homologous series varies successively, they were able to described as the following equations: σ=(a 0+a 1n+a 2n 2)/(1+b 2n 2) ,where a 0,a 1,a 2,b 2 all refer to the constants, n to the number of repeating units , σ to the surface tensions of homologous organic compounds series. Significant correlation was found between the surface tension of homologous organic compounds series and their number of repeating units in this models.

关 键 词：有机同系物 表面张力 递变规律 结构 重复单元数值 连续变化模型 

分 类 号：O621.141[理学—有机化学] O621.21[理学—化学]