Affiliation:
1. Department of Chemistry Faculty of Science and Letters Istanbul Technical University Maslak Istanbul 34469 Turkey
2. Department of Biotechnology and Physical Chemistry Faculty of Chemical Engineering and Technology Cracow University of Technology Warszawska 24 Kraków 31‐155 Poland
Abstract
AbstractA straightforward approach is employed to synthesize methylene‐bridged poly(hetero aromatic)s based on furan, pyrrole, thiophene, and thiophene derivatives. The process involves an electrophilic aromatic substitution reaction facilitated by a visible light‐initiated system consisting of manganese decacarbonyl and an iodonium salt. The approach mainly relies on the formation of halomethylium cation, the attack of this cation to heteroaromatic, regeneration of methylium cation on the heteroaromatic, and reactivity differences between halomethylium and heteroaromatic methylium cations for successful polymerizations. This innovative synthetic strategy lead to the formation of polymers with relatively high molecular weights as the stoichiometric imbalance between the comonomers increased. Accordingly, these newly obtained polymers exhibit remarkable fluorescence properties, even at excitation wavelengths as low as 330 nm. Moreover, by harnessing the halogens at chain ends of homopolymers, block copolymers are successfully synthesized, offering opportunities for tailored applications in diverse fields.
Subject
Materials Chemistry,Polymers and Plastics,Organic Chemistry