利用气相色谱法,在348.15~368.15 K温度,测定了正己烷、正庚烷、正癸烷、甲苯和丁酮溶剂在有机硅膜中的无限稀释扩散系数,结合Vrentas-Duda自由体积模型计算得到溶剂/有机硅膜体系溶剂有限浓度扩散系数,在理论上预测了不同溶剂在有机硅膜中扩散特性对膜分离性能的影响,在实验和理论两个方面,为进一步研究有机硅膜分离机理打下了基础.
参考文献
[1] | Danner RP.;Surana RK.;Duda JL.;Tihminlioglu F. .Inverse gas chromatography applications in polymer-solvent systems[J].Fluid Phase Equilibria,1998(1/2):171-188. |
[2] | 李光亮.有机硅高分子化学[M].北京:科学出版社,1998:1-10. |
[3] | Gray D G;Guillet J E.Studies of diffusion in polymers by gas chromatography[J].Macromolecules,1973(02):223-227. |
[4] | Duda J L;Vrentas J S;Ju S T.Prediction of diffusion coefficients for polymer-solven systems[J].Macromolecules,1969(03):272-277. |
[5] | Vrentas J S;Duda J L.Diffusion in polymer-solvent systems.I.Re-examination of the free-volume theory[J].Polymer Science SERIES B:Polymer Physics,1977:403-416. |
[6] | Vrentas J S;Duda J L.Diffusion in polymer-solvent systems.II.A predictive theory for the dependence of diffusion coefficients on temperature,concentration,and molecular weight[J].Polymer Science SERIES B:Polymer Physics,1977:417-428. |
[7] | Vrentas J S;Chu C H;Drake M C.Predivitive capabilities of a free-volume theory for solvent self-diffusion coefficients[J].Polymer Science SERIES B:Polymer Physics,1989:1179-1184. |
[8] | Zielinski J M;Duda J L .Predicting polymer/solvent diffusion coefficients using free-volume theory[J].AICHE Journal,1992,38(03):405-415. |
[9] | Liu H T;Duda J L.Effect of solvent size on diffusion in polymer-solvents systems[J].Application of Polymer Science,1980:1793-1797. |
[10] | Vrentas J S;Duda J L.Free-volume theories for self-diffusion in polymer-solvents systems.II.Predictive capabilities[J].Journal of Polymer Science Part B:Polymer Physics,1985:289-304. |
[11] | Pickup S;Frank D B.Self-diffusion of toluene in polystyrene solution[J].Macromolecules,1989:3961-3968. |
[12] | Vrentas J S;Vrentas C M;Faridi N.Effect of solvent size on solvent self-diffusion in polymer-solvents systems[J].Macromolecules,1966:3272-3276. |
[13] | Von Meerwall E;Ferguson R D.Diffusion of hydrocarbons in rubber,measured by the pulsed gradient NMR method[J].Application of Polymer Science,1979:3657-3669. |
[14] | Vrentas J S;Duda J L;Hou A C.Segmentwise diffusion in molten polystyrene[J].Application of Polymer Science,1986:739-745. |
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