小角X射线散射结合紫外可见光谱和准弹性光散射：聚合物基质中合成的银溶胶的精确表征。

Bulavin Leonid, Kutsevol Nataliya, Chumachenko Vasyl, Soloviov Dmytro, Kuklin Alexander, Marynin Andrii

Faculty of Physics, Taras Shevchenko National University, 60 Volodymyrska str., Kyiv, 0160, Ukraine.

Institute for Safety Problems of Nuclear Power Plants NAS of Ukraine, 12 Lysogirska str., Kyiv, 03680, Ukraine.

Nanoscale Res Lett. 2016 Dec;11(1):35. doi: 10.1186/s11671-016-1230-2. Epub 2016 Jan 27.

The present work demonstrates a validation of small-angle X-ray scattering (SAXS) combining with ultra violet and visible (UV-vis) spectroscopy and quasi-elastic light scattering (QELS) analysis for characterization of silver sols synthesized in polymer matrices. Polymer matrix internal structure and polymer chemical nature actually controlled the sol size characteristics. It was shown that for precise analysis of nanoparticle size distribution these techniques should be used simultaneously. All applied methods were in good agreement for the characterization of size distribution of small particles (less than 60 nm) in the sols. Some deviations of the theoretical curves from the experimental ones were observed. The most probable cause is that nanoparticles were not entirely spherical in form.

本研究展示了结合小角X射线散射（SAXS）、紫外可见（UV-vis）光谱和准弹性光散射（QELS）分析对聚合物基质中合成的银溶胶进行表征的验证。聚合物基质的内部结构和聚合物的化学性质实际上控制了溶胶的尺寸特征。结果表明，为了精确分析纳米颗粒的尺寸分布，应同时使用这些技术。所有应用的方法在表征溶胶中小颗粒（小于60纳米）的尺寸分布方面都具有良好的一致性。观察到理论曲线与实验曲线存在一些偏差。最可能的原因是纳米颗粒的形状并非完全球形。