| 计算高聚物增塑体系混合自由能新方法 |
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| 引用本文： | 邵自强,郝红英,廖双泉,谭惠民.计算高聚物增塑体系混合自由能新方法[J].高等学校化学学报,2001,22(6):1028-1030. |
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| 作者姓名： | 邵自强 郝红英 廖双泉 谭惠民 |
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| 作者单位： | 1. 北京理工大学化工与材料学院,
2. 华北工学院, |
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| 基金项目： | 国家教育委员会留学基金! (批准号 :95 12 2 )资助 |
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| 摘 要： | 高聚物增塑体系混合自由能与浓度关系 ΔGm=f(ω1) ,不仅反映了增塑体系热力学稳定性好坏 ,而且可以预测溶液各组分间的作用能力 1,2 ] .通过实验可直接得到增塑体系混合自由能的相关数据 ,其中包括偏蒸气压值测量法、渗透压法、反相气相色谱法及小角 X射线散射法等3～ 8] .这些方法可以测量增塑体系挥发性组分的偏摩尔化学位值 ,利用下面公式计算Δμ1/RT =ln(p1/p1,S)式中 p1,p1,S是某温度下增塑体系增塑剂的偏蒸气压值和纯增塑剂的饱和蒸气压 .1 现有的高聚物混合体系自由能 ηGm计算方法对于低分子溶液体系各组分的偏摩尔化学位Δ…
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| 关 键 词： | 吉布斯自由能 高聚物溶液 相容性 高聚物增塑体系 混合自由能 热力学 计算方法 |
| 文章编号： | 0251-0790(2001)06-1028-03 |
Synthesis and Characterization of Novel Functional Hyperbranched Polyesters |
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| SHAO Zi Qiang,HAO Hong Ying,LIAO Shuang Quan,Yu. M. Lotmentsev,TAN Hui Min.Synthesis and Characterization of Novel Functional Hyperbranched Polyesters[J].Chemical Research In Chinese Universities,2001,22(6):1028-1030. |
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| Authors: | SHAO Zi Qiang HAO Hong Ying LIAO Shuang Quan Yu M Lotmentsev TAN Hui Min |
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| Institution: | SHAO Zi Qiang,HAO Hong Ying2,LIAO Shuang Quan1,Yu. M. Lotmentsev3,TAN Hui Min1 |
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| Abstract: | To study method for calculating mixing free energy of polymer solutions. A new method for treating experimental data on concentrating dependence of chemical potential was advanced. Various methods for calculating mixing free energy through the Flory Huggins equation were compared. Relations on concentration dependence of chemical potential were gained by various methods. As compared with other known calculating procedures, the new method was shown to provide more precise estimates mixing free energy. |
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| Keywords: | Gibbs free energy Polymer solution Compatibility |
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