A method for rapid determination of diffusion coefficients of polar solvents in anisotropic porous materials, making it possible to control the state of products prepared from such materials without destruction, is reported. For implementation of the proposed method, no preliminary calibration of the local solvent concentration in solid phase for the used converter and each new “porous material-solvent” system is required; that circumstance largely increases the research productivity of the method. The method possesses flexibility in terms of the possibility for measuring the values involved in the calculation expression on curve sections with a high sensitivity to parameter changes and in the range with a stable and noise-protected output signal of the concentration converter, which fact ensures an in-creased control accuracy.

中文翻译：

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快速测定块状各向异性多孔材料中的扩散率

报道了一种快速测定极性溶剂在各向异性多孔材料中的扩散系数的方法，该方法使得可以控制由这种材料制备的产品的状态而不会被破坏。为了实施所提出的方法，不需要对所使用的转化器和每个新的“多孔材料-溶剂”系统的固相中局部溶剂浓度进行初步校准；这种情况大大提高了该方法的研究效率。该方法具有灵活性，它可以测量对参数变化高度敏感的曲线段上的计算表达式中涉及的值，并且可以在浓度转换器具有稳定且受噪声保护的输出信号范围内进行测量，从而确保了提高控制精度。