Photopolymerization of (meth)acrylate-based formulations has become a widespread method for many industry sectors due to the high energy efficiency and low curing times of this technology. Various products, from simple coatings to more complex applications are based on this method. Common industrial radical photoinitiators are generally based on aromatic ketones with the benzoyl-chromophore as the key constituent. In medical or food packaging applications, residual photoinitiator or photoproducts migrating into the packaged product have to be avoided, particularly of toxicological reasons. The benzoyl-chromophores of cleavable photoinitiators are generally problematic as well as various photoproducts, which are generated during the curing reaction. Especially volatile and odorous compounds such as benzaldehyde can be problematic at the production site or when it comes to food packaging.1 Degradation and recombination products of aromatic initiators are potentially mutagenic or toxic to the human body.2 Therefore, even safe initiators can lead to substances migrating out of the resulting polymer network and becoming hazardous. So non-aromatic, non-migrating photoinitiators are of high interest for industrial applications. Therefore a new generation of initiator systems, based on -ketoesters, was developed. -Ketoglutaric acid is a metabolite in the human body and therefore a highly biocompatible. It serves as non-volatile photoinitiator based on the -ketoester concept. Additionally there are approaches to limit the migration of those initiators after curing, by synthesizing macromolecular and polymerizable photoinitiators. Compared to the classical benzophenone-amine photoinitiator systems, the small -ketoesters show increased reactivity and higher curing speed. As expected, the macromolecular, polyester-based photoinitiators show lower reactivity due to the limited diffusion of the radicals in a (meth)acrylate-based formulation. With a low amount of migratable components out of the cured material, the aim of the thesis has been successfully reached. Furthermore, there were improved mechanical properties measureable, in terms of higher glass transition temperature, raised storage modulus at elevated temperatures and enhanced tensile strength in an (meth)acrylate-based monomer system.