Intertek Polychemlab has longterm experience in characterisation of polymers and plastics and performs GPC analysis for determination of number-average molecular weight (Mn), mass-average molecular weight (Mw), z-average molecular weight (Mz) and Polydispersity / Molecular weight distribution (MWD) of a broad range of polymers and plastics. Intertek delivers molecular weight data for process optimisation, characterisation of newly developed polymers, research project support and product quality control.

Molecular weight determination services by Intertek Polychemlab include:

• MWD of polymers, soluble in organic solvents (eg. THF, Toluene, Chloroform, DMF, and others)
• GPC (Gel Permeation Chromatography) / SEC (Size Exclusion Chromatography) of organic soluble polymers with MW ranging from 100 - 10.000.000 g/mol.
• Conventional (calibration based) GPC-DRI (Differential Refractive Index detection) with polystyrene-standard (PS)-calibration or polymethylmethacrylate standards (PMMA)-calibration.
• GPC-UV detection.
• characterisation of polymers (rheologic properties, optical properties, mechanical properties)

The Intertek worldwide laboratory network provides the following MW-determination related services:

• Gel Permeation Chromatography (GPC)
• GPC-UV / RI / SFD / Viscosimetry / ELSD / light scattering detection.
• Multi Angle Laser Light Scattering (MALLS)
• MALDI TOF-MS

MWD determination of a broad range of polymers and plastics

• Acrylics, acrylates, polystyrene, rubbers
• Polycarbonates, polysiloxanes
• epoxy resins, polyester resins, silicone fluids
• prepolymers, resins, polyols, siloxanes
• etc.

Contact and information
For information, please contact one of our experts:+31 46 476 27 13 of email