A graft copolymer system by combination of ATRP and click chemistry: Synthesis, characterization

In this work, fitstly, 4-(azidomethyl)styrene (AMS) monomer was synthesized by reaction 4-chloromethyl styrene and NaN3. Then a series of copolymers were prepared by copolymerization of 4-(azidomethyl)styrene (AMS) and styrene. P(AMSP-ko-St) was synthesized from click reaction of propargylbromide with those copolymers. It was used as initiator P(AMSP-ko-St) and was used for graft copolymerization of benzylmethacrylate. Free radical and atom transfer radical polymerization methods were used for homo and copolymerization systems. FT-IR, 1H ve 13C-NMR techniques used for characterization of polymers synthesized. The thermal behaviors of polymers were measured with DSC and TGA techniques and were compared with each others. The average molecular weights of polymers were determined by GPC techniques. The dielectric behaviors of polymers were measured as a function of frequence and were compared by their structures Anahtar Kelimeler: Atom tansfer radical polymerization, Click reaction, Thermal properties, Dielectrik properties