Unexpected self-assembly, photoluminescence behavior, and film-forming properties of polysiloxane-based imidazolium ionic liquids prepared by one-pot thiol-ene reaction

A facile synthesis of a series of polysiloxane-based ionic liquids (PNLs) is reported for the first time via straightforward thiol-ene reaction with high yield using three kinds of imidazolium ionic liquid monomers bearing a halide group and poly[(mercaptopropyl)methylsiloxane]. Unexpectedly, PNLs exhibit heterogeneous physical properties with the change of the modification molar ratio; meanwhile, their film-forming properties are well discussed. Furthermore, strong blue photoluminescence caused by the S -> Si coordination bond and interesting self-assembly behavior in selected solvents were observed.