Polymer reaction engineering (PRE) is a scientific and economic topic influenced by and itself influencing various scientific disciplines, globalised economy issues and societal needs. This triennial International Workshop updates technological progress and discusses recent and new scientific or practical concepts. The demands and expectations of economy and society with respect to improving the efficiency of energy, materials and investment in manufacturing of polymers are constantly driven by economic globalization, rising energy costs and the aim of sustainable use over the lifetime of products. Existing polymerisation processes have to improve and new processes have constantly to be designed to answer the demands. This requires efforts in the design of new catalysts and the study of their kinetic and thermodynamic behaviour to find and optimise polymerisation reactions. These have to be formed into process technologies enabling economic, robust and safe production. The almost universal variety of application areas from coatings over functional materials to construction generates versatile requirements. Among many other developments and implications nano technologies, process intensification and increased precision in tailoring polymers continue to fuel progress in PRE. It also substan-tially learns and benefits from process analytics and the rapidly increasing abilities in modelling and simulation and thereby control of processes in the general area of reaction engineering. The Scientific Committee, DECHEMA Society for Chemical Technology and Biotechnology and The University of Hamburg cordially invite you to participate in the 11th International Workshop on Polymer Reaction Engineering in Hamburg/Germany.