This publication presents a continuous synthesis approach for functionalized polyolefins (FPOs) using a newly developed Continuous Bench-scale Reactor Apparatus (COBRA). Designed as a miniature system with key features of a pilot plant, COBRA enables realistic process conditions while maintaining flexibility at laboratory scale. The work highlights the potential of in-reactor functionalized polyolefins—produced via molecular catalysts—for applications such as high-performance adhesives and bitumen compatibilization.
The study further investigates the influence of methylaluminoxane (MAO) on polymer quality and catalyst performance. While high MAO concentrations lead to discoloration due to decomposition during degassing, reducing MAO compromises productivity. By introducing tris(tert-butyl)aluminum (TTB) as a co-catalyst, the authors demonstrate a balanced solution that enhances catalyst efficiency while yielding clear resins—making the MAO–TTB system a promising candidate for scalable production.
Authors: Miloud Bouyahyi, Job Guzman, Travis Conant, Reggie Tennyson, Christoph Brose, Riccardo Conti, Peter Kolb, Andreas Müller
