Description du sujet de thèse

Polymers are a very important part of everyday life in modern society. Their synthesis is essentially based on the use of petroleum-based starting materials. However, the cost of synthesising polymers is likely to rise sharply over the coming years as a result of soaring oil prices and the decline in available oil resources. To overcome this drawback, it is now crucial to replace oil resources with biosourced resources. This is currently one of the most important areas of research in the field of polymer materials. Non-renewable fossil resources could eventually be replaced by 'green' compounds derived from nature. The first objective of this work will be to prepare new bio-based monomers by carrying out acrylations or methacrylations of natural products. Their reactivity will then be determined by photopolymerisation, and the physico-chemical properties of the polymers obtained will be studied.
In addition, less than a third of plastic materials are recycled these days, which is a major problem, particularly from an environmental point of view. The possibility of recycling polymers after use is currently another major issue. This is why the ultimate aim of this research is to develop recyclable polymer materials obtained from biosourced compounds. This research topic will be carried out in collaboration with the Arkema group.

Contexte de travail

This thesis will be carried out at the Institut de Science des Matériaux de Mulhouse (IS2M) - a joint CNRS-Université de Haute-Alsace research unit (UMR 7361). The thesis will be associated with the Université de Haute-Alsace-Université de Strasbourg Doctoral School (ED182) Thanks to its multi-disciplinary nature, its scientific influence and its interactions with other fields, the laboratory is one of the key players in the field of materials and their applications in the academic and industrial world, at regional, national and international level. IS2M owes its reputation to the excellence of its research, the scientific reputation of its researchers and teacher-researchers and the professionalism of its research support staff. This thesis will be carried out in the IS2M's PM2P Molecular PhotoChemistry and PhotoPolymerisation group, headed by Prof. Jacques Lalevée. The general objective of the PM2P axis is to advance knowledge in the field of materials, and more specifically here of bio-based and recyclable materials.
Social benefits : On-site university catering, easy access by public transport, mobility package, complementary health protection package
Working hours : 38h30/week from Monday to Friday. No on-call duty, staggered hours or week-end work.

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.

Contraintes et risques

Chemical and radiation risks.