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INTEGRAL ESTIMATION OF EFFECTS OF AGGREGATION OF NANOPARTICLES IN SOLUTIONS FROM AUTOCORRELATION FUNCTIONS OF INTENSITY OF SCATTERED RADIATION

机译:纳米颗粒聚集在散射辐射强度自相关函数中纳米颗粒聚集作用的积分估算

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摘要

A method of investigation of processes that arise in aggregation of nanoparticles in colloidal solutions based on estimation of variations in the coefficients of rotational diffusion of nanoparticles is proposed. It is shown that rotational diffusion is more sensitive to variations in the dimensions of the particles than is translational diffusion. A comparative estimation of these types of variations is presented and the relative index of aggregation is calculated from the integral values of the autocorrelation function of depolarized dynamic light scattering. Results of numerical simulation of the proposed method and its experimental certification are compared.
机译:提出了一种研究基于纳米粒子旋转扩散系数的变化的胶体溶液聚集在颈液中出现的过程的研究。结果表明,旋转扩散对粒子尺寸的变化比是平移扩散更敏感。提出了这些类型的变型的比较估计,并且从去极化动态光散射的自相关函数的积分值计算了聚集的相对指标。比较了该方法的数值模拟结果及其实验认证。

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