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    刘萌戈, 周持兴. 苯与DOP在LDPE与PEMA基体中无限稀释扩散系数的测定及研究[J]. 功能高分子学报, 2004, 17(2): 290-292.
    引用本文: 刘萌戈, 周持兴. 苯与DOP在LDPE与PEMA基体中无限稀释扩散系数的测定及研究[J]. 功能高分子学报, 2004, 17(2): 290-292.
    shu
    LIU Meng-ge, ZHOU Chi-xing. Infinite Dilute Diffusion Coefficients of Benzene and DOP in Polymers[J]. Journal of Functional Polymers, 2004, 17(2): 290-292.
    Citation: LIU Meng-ge, ZHOU Chi-xing. Infinite Dilute Diffusion Coefficients of Benzene and DOP in Polymers[J]. Journal of Functional Polymers, 2004, 17(2): 290-292.
    shu

    苯与DOP在LDPE与PEMA基体中无限稀释扩散系数的测定及研究

    Infinite Dilute Diffusion Coefficients of Benzene and DOP in Polymers

      摘要
    • 摘要: 用逆流气相色谱法测定了苯、邻苯二甲酸二辛酯(DOP)在293～373K间在低密度聚乙烯(LDPE)、聚甲基丙烯酸乙酯(PEMA)基体中的无限稀释扩散系数，拟合了扩散系数与温度倒数的对数线性关系，并求得扩散活化能，发现它在玻璃化温度附近出现转折，且两者之间存在0．6倍关系。通过检验Vrentas-Duda自由体积扩散模型，发现在小分子无相变情况下该模型比较准确。

       

      Abstract: The infinite dilute diffusion coefficients(D) of benzene and DOP in LDPE and PEMA between 293-373 K were measured by inverse gas chromatographic method, and a linear relation between lnD and the inverse of T was fitted. It is found that the diffusion acti

       

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