Process of preparing regioregular polymers

The present invention positions the regular polymer, in particular the upper position with a high regularity-in-terminated (HT) poly- (3-substituted) thiophene-process for producing a novel polymer prepared by this method, field effect transistor, (FET), full-length light-emitting, optical, including photovoltaic and sensor devices, electro-optical, or the use of the novel polymers as semiconductors or charge transport materials in an electronic device, FET, and other semiconducting components or materials comprising the novel polymers, In the production of the polymer end-capping end-capping method, and thus obtained polymer and the equipment related to their use.