High Temperature size exclusion chromatography (HT-SEC)

Characterization

Brand

Polymer Char GPC-IR HT-SEC

Eluent

1,2,4-trichlorobenzene (TCB)

Temperature range

Up to 160 °C

Detector

IR4 dual-wavelength

Typical sample size

8 – 16 mg

Output

Average molecular mass
Branching density
Dispersity

HT-GPC or HT-SEC is used to determine the average molecular weight (Mn and Mw) and the dispersity (Mw /Mn) of crystalline polymers which show low solubilities in common organic solvents at ambient temperature. Therefore, HT-SEC is routinely applied to polyolefins, such as PE, UHMWPE or iPP. Molecular masses are calibrated versus monodisperse polymer standards.