The research activities of Prof. Rieger (b. 1959) are focused on homogeneous polymerization catalysis. His work provides the opportunity to selectively control the microstructure of polymers and thereby tailor their macroscopic properties, such as elasticity. He also explores the use of CO2 as a resource for the synthesis of polymers. This process produces biodegradable polycarbonate. Other research areas include oligomers and polymers, organo-functionalized silicon compounds and the development of new materials that possess properties that have not been combinable to date, for example hardness, hydrophobicity, gas permeability, UV stability and temperature stability.