Melt Polycondensation for the Synthesis of Polyester Amides using Kneader Reactor Technology.

Chimia (Aarau)

Haute école d'ingénierie et d'architecture Fribourg, Institute ChemTech, Boulevard de Pérolles 80, CH-1700 Fribourg, Switzerland;, Email:

Published: December 2020

In this work, we discuss the process development and scale-up of the melt polycondensation of polyester amides from a laboratory scale to kg-scale in a kneader reactor. We identified and optimized the most important critical parameters and produced kg-quantities of polyester amides with Mn up to 25'000 g/mol and reproducible thermal and mechanical properties. The special kneader reactor allows safe and efficient scale-up of polymerisation reactions at high temperature and viscous melts due to good mixing and efficient mass transfer.

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http://dx.doi.org/10.2533/chimia.2020.1024DOI Listing

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