Static and dynamic light scattering (SLS and DLS) are foundational techniques in polymer research, enabling non-destructive, solution-phase measurement of molecular weight, size, conformation, and intermolecular interactions. While conventional single- or fixed-angle implementations provide valuable physicochemical insight, their applicability is often limited for very high molecular weight systems, concentrated or turbid samples, and structurally complex or stimuli-responsive polymers, creating persistent characterization gaps.
 

　　This webinar reviews core light scattering principles and selected industrial and academic applications before introducing the LS Spectrometer II, an advanced free-solution, variable-angle SLS/DLS platform. By enabling angular-dependent measurements, the system supports detailed analysis of polymer shape and conformation across a broad size range, including ultra-high molecular weight materials and heterogeneous assemblies. The integration of patented Modulated 3D Cross Correlation technology suppresses multiple scattering, extending reliable measurements to high-concentration, optically turbid, and non-ergodic samples such as gels. Together, these capabilities expand the accessible experimental window for polymer characterization in both research and applied settings.
 

　　静态和动态光散射(SLS和DLS)是聚合物研究中的基础技术，能够无损地、在溶液相中测量分子量、尺寸、构象和分子间相互作用。虽然传统的单角度或固定角度实施方式提供了有价值的物理化学见解，但它们在应用于极高分子量系统、浓缩或浑浊样品以及结构复杂或对刺激有响应的聚合物时，适用性往往受到限制，从而造成了持续的表征空白。
 

　　本次网络研讨会首先回顾了核心光散射原理以及选定的工业和学术应用，随后介绍了LS光谱仪II，这是一款先进的自由溶液、可变角度的静态光散射(SLS)/动态光散射(DLS)平台。该系统通过实现角度依赖性测量，支持对宽尺寸范围内的聚合物形状和构象进行详细分析，包括超高分子量材料和异质组装体。专利的调制3D交叉相关技术的集成抑制了多次散射，将可靠测量扩展到高浓度、光学浑浊和非遍历性样品，如凝胶。这些功能共同扩展了聚合物表征在研究与应用环境中可用的实验窗口。