Multi-angle light scattering (MALS) remains a critical tool for characterization of polymers. In combination with separation by size-exclusion chromatography (SEC), MALS enables determination of molar mass distributions without relying on reference standards, making it invaluable for the analysis of polymers for which such standards do not exist, including novel homopolymers, block copolymers, and polymers with complex topologies. Additionally, polymers above a certain size can be analyzed with MALS to reveal valuable information about conformation and branching with appropriate analysis. Lastly, multi-detector analysis with MALS-RI-UV can provide molecular weight and stoichiometry information for bicomponent polymer and co-polymer systems. This event will review the theory behind MALS and how to apply the theory practically to polymer analysis.

• How molar mass, size, conformation, and branching of polymers are determined with SEC-MALS.
• How to account for dn/dc of polymers and varied measurement approaches.
• Results and considerations for experimental design and processing of SEC-MALS experiments.
• Extended characterization of block copolymers and conjugated systems.
• How to use ASTRA Software and tips and tricks.

Parker Lee Ph.D., Field Application Scientist II, Waters | Wyatt

Bio: Parker Lee joined Wyatt Technology in 2022 and works to ensure customer success.  As a regional manager, he is responsible for working with customers to ensure that they can utilize Wyatt’s light scattering instrumentation most effectively to improve and accelerate their research.  He earned his B.S. in Biological Systems Engineering from Virginia Tech and his Ph.D. in Macromolecular Science and Engineering from Case Western University. He lives in San Diego with his wife, his son, two dogs, two cats, and a tortoise.

Coffee & pizza will be provided. Space is limited. Register soon!