摘要
本文采用反相气相色谱法研究了聚辛烯——溶剂（环己烷,正庚烷,四氢呋喃）三个体系的热力学性质。研究了载气流速,探针分子进样量,聚辛烯涂布量对比保留体积的影响,得到了真实比保留体积V<sub>9</sub><sup>0</sup>,运用有关色谱理论以及Hory-Huggins溶液理论求算了相互作用参数X<sub>1</sub>。结果表明,该法求得的X<sub>1</sub>值与用蒸汽压下降法测量结果比较一致。对于聚辛烯—正庚烷体系,X<sub>1</sub>值随温度变化规律与另外两个体系相反。证明了Hildebrand溶度参数理论对聚辛烯正庚烷体系不适用。
Inverse Gas Chromatographic method (IGC) was used to study the thermo-dynamic properties of polyoctene-1-solvent (cyclohexane, n-hep-tane and TH-F) binary mixtures. The influences of carrier gas flow rate, the amount of probe injection and the loading of polyoctene-1 on the specific retention volume were investigated. With the use of Chromatographic theory and Flory-Hu ggins theory, the interaction parameters x1 were computed. It was shown that x1 value resulted from this method was in good agreement with that from vapor pressure lowering method, and that for polyoctene-1-n-heptane system the law of x, varying with temperature was contrary to that of the other two systems. And Hildebrand's solubility parameter theory was found to be not suitable for polyoctene-1-n-heptane system conseguently.
关键词
反相
气相色谱
聚辛烯
溶剂
热力学
Inverse gas chromatography, Polyoctene-1 interaction parameter, Thermodynamics
