viscometry การใช้

• The technique is sometimes complemented or combined with viscometry and polystyrene standards are available for validation of the results.
• In alternative fashion, techniques such as light scattering and / or viscometry can be used online with SEC to yield absolute molecular weights that do not rely on calibration with standards of known molecular weight.
• The number average molecular mass of a polymer can be determined by gel permeation chromatography, viscometry via the ( Mark Houwink equation ), colligative methods such as vapor pressure osmometry, end-group determination or proton NMR.
• Experimental approaches for characterizing polymers are also common, using Polymer characterization methods, such as size exclusion chromatography, Viscometry, Dynamic light scattering, and Automatic Continuous Online Monitoring of Polymerization Reactions ( ACOMP ) for determining the chemical, physical, and material properties of polymers.
• Gel permeation chromatography is often used in combination with Low-angle laser light scattering ( LALLS ) and or viscometry can be used to determine the molecular weight distribution as well as the degree of long chain branching of a polymer, provided a suitable solvent can be found.