Description du sujet de thèse

Silica-supported methylaluminoxane (MAO) is a key activator in polyolefin production. When combined with metallocene precatalysts, it enables high activity in olefin polymerization, while providing precise control over composition and molecular weight distribution. However, this activator remains a poorly defined solid at the structural level, and its mechanism of metallocene activation is still largely unclear. In this context, the development of alternative supported activators derived from MAO represents a particularly promising research direction.
The objective of the Aime-AO project (funded by the ANR France) is to design and develop new MAO-based supported activators which, through metallocene activation, are capable of generating more efficient catalysts for olefin polymerization. These systems will be developed using surface organometallic chemistry, following three main research axes:
• Investigating the reactivity of MAO toward inorganic supports in order to identify reactive centers and grafting sites, by employing advanced characterization tools, in particular high-resolution solid-state ²⁷Al NMR;
• Using this knowledge to rationally design new supported activation systems;
• Understanding and optimizing the process of metallocene activation, with the aim of developing more efficient polymerization catalysts.
This research topic encompasses aspects of synthesis, reactivity, and characterization of organometallic compounds under controlled atmosphere, polymerization catalysis, as well as the application of advanced spectroscopic techniques, in synergy with theoretical chemistry studies. The multidisciplinary nature of this project, at the interface between fundamental research and applied science, requires expertise in organometallic chemistry, support functionalization, and heterogeneous catalysis.

Contexte de travail

The selected candidate will join the Chemistry, Catalysis, Polymers, and Processes Laboratory (CP2M, UMR CNRS 5265) in Villeurbanne, within the theme “Surface Organometallic Chemistry for Catalysis.” Surface organometallic chemistry is a major research axis of CP2M, addressing heterogeneous catalysis from a molecular perspective. This fundamental approach has led the laboratory to develop two complementary directions: surface organometallic chemistry and applied catalysis in various fields, including petrochemistry, environmental science, polymers, and biomass valorization.
The selected candidate will work closely with researchers and PhD students at the laboratory, as well as with international scientists involved in ANR “AIme-AO” project..

Contraintes et risques

Profile sought
We are seeking a motivated candidate holding a Master's degree in Chemistry with an excellent academic background. A solid theoretical training combined with experience in synthetic organometallic chemistry is essential. Experience in handling air- and moisture-sensitive organometallic compounds, requiring proficiency in Schlenk techniques and glovebox use, will be considered an asset. Excellent command of English (oral and written), organizational skills, autonomy, initiative, and team spirit are required.
Application File
• Detailed CV
• Motivation letter (1 page)
• Academic transcripts and certificates
• Master's thesis report (or a confidential summary of the research work)
• Contact details of two references
Selection Process
Preselection will be based on the CV, experience, skills, and motivation letter. Shortlisted candidates will then be interviewed by a selection committee.
Starting Date
The position is expected to start preferably in January 2026.