Qualitative Profiling of Co-polymer Polyethylene Terephthalate through Multifunctional Pyrolyzer-GC/MS by various Thermal Treatment Techniques

Polyethylene terephthalate (PET) is the most common thermoplastic polymer resin of the polyester family that is extensively used for packaging applications due to its barrier properties, recyclability and compatibility with food applications. It can be synthesized through condensation of ethylene glycol and terephthalic acid. To improve the properties of PET, modifications can be made to create PET co-polymer (co-PET).[1] Multi-functional pyrolyzer coupled with gas chromatography/mass spectrometry (GC/MS) is a powerful technique for distinguishing different types of co-PETs. However, the chromatogram obtained from conventional faash pyrolysis (Py) of polyester can be complicated as further degradation of the polymer can occur to produce smaller molecules such as benzene and benzoic acid.[2] To simplify data interpretation of the pyrogram for qualitative profiling, the samples were subjected to thermochemolysis, also known as reactive pyrolysis (RxPy) in the presence of tetramethylammonium hydroxide (TMAH). In this study, a combination of evolved gas analysis (EGA)-MS, thermal desorption (TD)-GC/MS, Py-GC/MS and RxPy-GC/MS techniques were applied to study the components of different co-PETs.

Content Type:
Document Number:
Product Type:
Mass Spectrometry, Gas Chromatograph-Mass Spectrometry
Polyethylene terephthalate, PET, packaging, PET co-polymer, evolved gas analysis, EGA, Py-GC/MS, RxPy-GC/MS, TD-GC/MS, Food and Beverages, Food safety (Residues, Contaminants), GCMS-TQ2020, automated multi-functional pyrolyzer, PY-3030D
File Name:
File Size:

Free Download

For Research Use Only. Not for use in diagnostic procedures.

This page may contain references to products that are not available in your country. Please contact us to check the availability of these products in your country.

Top of This Page