Polyurethanes (PUs) are among the most widely known and manufactured polymers in industry, particularly in the field of rheological additives. However, they require the use of highly toxic isocyanates, are poorly recyclable, and raise environmental and safety concerns. Several alternatives, such as blocked and aqueous isocyanates, show promise, but their large-scale deployment is limited by the alcohol reagents used, which are mostly not bio-based. In this context, non-isocyanate polyurethanes (NIPUs), obtained from diglycol dicycarbonate (DGDC), appear to be the most suitable alternative to conventional PUs. ARKEMA’s Crayvallac® rheological additives are organo-gelling agents based on polyamide chemistry containing a proportion of bio-based monomers derived from vegetable oils. The goal of the internship is to achieve 100% bio-based monomers.
Actualités
- Offre de stage de M2 : Contrôle qualité d’une interface polymère renforcé lors du soudage par analyse non destructive – IJL, Nancy, campus Artem (02/02/2026)
- Offre de stage niveau Master : Etude des propriétés mécaniques des polymères en relation avec l’évolution de leur microstructure en temps réel par spectroscopie Raman – IJL, Nancy, campus Artem (02/02/2026)
- Offre de thèse CIFRE : Optimisation du post‑traitement de résines photopolymérisables pour l’impression 3D DLP – Université Côte d’Azur & société 2MS (02/02/2026)
- EUPOC 2026 – Designing New Polymers by Combining High-Throughput and Artificial Intelligence Tools
- Offre de thèse : Élaboration et caractérisation de substrats modifiés par des polymères à empreintes moléculaires pour la détection de PFAS – MAPIEM, Université de Toulon (24/01/2026)