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Article Dans Une Revue Macromolecular Chemistry and Physics Année : 2019

An Advanced Technique for Linear Low‐Density Polyethylene Composition Determination: TGA–IST16–GC–MS Coupling

Résumé

An innovative method based on thermogravimetric analysis combined with gas chromatography and mass spectrometry, TGA-IST16-GC-MS, was developed for measuring the comonomer type and the comonomer content in a series of linear low-density polyethylene (LLDPE). LLDPE such as copolymers of ethylene and octene or ethylene and hexene were synthetized using the Et(Ind)2ZrCl2 / MAO zirconium-metallocene catalyst. Their characterization with TGA-IST16-GC-MS system were compared to the one of polyethylene prepared under similar conditions and used as reference. TGA-IST16-GC-MS allowed discriminating the comonomer type (hexene or octene) and content. Combining the versatility of thermal analysis and the accuracy and sensitivity of mass spectrometry, this original method proved to be very useful for routine characterization of LLDPE. It has the advantage of being quicker and more easily performed that traditional means of obtaining copolymer compositions such as nuclear magnetic resonance (NMR), or chromatographic methods such as TREF.
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Dates et versions

hal-02349212 , version 1 (12-11-2020)

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Olivier Boyron, Tiffany Marre, Alain Delauzun, Ronan Cozic, Christophe Boisson. An Advanced Technique for Linear Low‐Density Polyethylene Composition Determination: TGA–IST16–GC–MS Coupling. Macromolecular Chemistry and Physics, 2019, 220 (17), pp.1900162. ⟨10.1002/macp.201900162⟩. ⟨hal-02349212⟩
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