The capability to get accurate molar masses without having the proper polymer standards is offered by on-line viscosity detection. This method uses the concept of universal calibration and provides the correct masses, the molecular weight distribution, Mark-Houwink coefficients, and information about the structure of the polymer. With viscosity detection also small molecules (e.g. oligomers) can be analyzed, a big advantage over on-line light scattering measurements.
The GPC - viscosity coupling allows to determine the important relationship between intrinsic viscosity and molar mass of a polymer within one measurement. From this data, the Mark-Houwink parameters of the investigated 'polymer - solvent' system and structural information can be opbtained.
Results provided to the client:
- intrinsic viscosity
- Mark-Houwink parameters
- molecular weight distribution
- molecular weight averages, Mw, Mn, Mz
- branching / structural information
Request quote for sample testing
Customers from USA and Canada:
- Print and fill out the sample testing evaluation form, to be sent with the samples