Broad Range Molecular Weight Standards
Broad range molecular weight standards contain homopolymers with a broad molar mass distribution. These standards are available for a variety of polymers, including polystyrene, polymethylmethacrylate (PMMA), and polyvinyl pyrrolidone. Broad standards can be used for GPC/SEC column calibration, to validate chromatographic systems and detectors, and to determine physical constants such as the Mark-Houwink constants K and α.
Product Details
Features
- Homopolymers with broad molar mass distributions
- Variety of polymers available, including polystyrene, polymethylmethacrylate (PMMA), and polyvinylpyrrolidone.
- Made by radical polymerization, polycondensation, or coordinative polymerization (polyolefins)
- PDI of broad standards is usually greater than 1.5
- Molecular weights selected to provide equidistant calibration points for greater accuracy and linear calibration
How It Works