Analysis of Polystyrene with Antioxidant Additive Using Prominence-i GPC System

Gel permeation chromatography (GPC) for the analysis of hydrophobic polymers has been conducted using a differential refractive index detector. However, when UV-absorbing trace-level additives are present along with the principal synthetic polymer component, these are sometimes analyzed using a UV detector or photodiode array detector (PDA) for high-sensitivity detection. However, a combination of a differential refractive index detector and UV detector makes it possible to conduct simultaneous analysis of the principle component along with any trace-level additives, and further, permits calculation of the molecular weight distribution of the polymer, confirmation of the UV spectra of minor components, and quantitation based on the calibration curve and qualitative analysis results.
Here, we introduce an example of GPC analysis of polystyrene using the Prominence-i GPC system.

Content Type:
Application
Document Number:
LAAN-A-LC-E259
Product Type:
Liquid Chromatography
Keywords:
Integrated high performance liquid chromatograph, PDA, Synthetic polymer, Additives, Antioxidants, Polystyrene, High-sensitivity detection, UV spectrum, Calibration curve, Number-average molecular weight, Weightaverage molecular weight, Molecular weight distribution, Hydrocarbon Processing Industry (Petrochemical, Chemical), Rubber, Resin, Plastics, Prominence-i, GPC system, RID-20A
Language:
English
File Name:
jpl215007.pdf
File Size:
978kb

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