Synthesis and RAFT polymerization of a novel vinyl monomer containing both triarylimidazole and triazole moieties

Abstract

A novel monomer consisting of a 4-vinyl-1,2,3-triazole unit directly linked to a triphenylimidazole unit, 1-(4-(4,5-diphenyl-1H-imidazol-2-yl)phenyl)-4-vinyl-1H-1,2,3-triazole (DVT), has been successfully synthesized using click chemistry followed by elimination reaction. Subsequently, poly(DVT) was prepared by the reversible addition-fragmentation chain transfer (RAFT) polymerization of DVT in dimethyl sulfoxide using S-dodecyl-S′-(α,α′-dimethyl-α″-acetic acid)-trithiocarbonate (DMP) as the RAFT agent and 2,2′-azobis(isobutyronitrile) (AIBN) as the initiator. Kinetic studies demonstrated that the polymerization process of DVT followed pseudo-first-order kinetics with respect to the monomer concentrations. The molecular weight of the resulting polymer increased linearly with monomer conversion, while a low polydispersity was maintained throughout. In addition, the poly(DVT) showed the characteristic of temperature-dependent absorbance in the near-ultraviolet (UV) spectral region, of which a linear dependence of UV absorbance on temperature was confirmed for the polymer both in solution and in solid states.

Synthesis of novel types of polyester glycodendrimers as potential inhibitors of urinary tract infections

“…[58][59][60] The reaction has also been used for the synthesis of monomers, dendrons and dendrimer skeletons. [61][62][63][64] Here, using the click reaction, 17 and 20 were reacted with mannoside 7 to give the corresponding divalent mannoside clusters 26 and 27, respectively (Scheme 6). Most often, this reaction is carried out using a mixture of water and tetrahydrofuran and this system worked well for the preparation of divalent clusters.…”

Water-soluble polymeric chemosensor for detection of Cu2+ions with high selectivity and sensitivity

“…[18][19][20][21] Recently in the field of metal sensing, chemosensors based on polymers have become more and more important due to some advantages like easy fabrication and signal amplification compared to a simple organic compound. [22][23][24] Advances in synthetic chemistry and the advent of different polymerization techniques like reversible addition-fragmentation chain transfer (RAFT), [25,26] atom transfer radical polymerization (ATRP), [27] etc. have enabled the synthesis of polymers with well-controlled architectures e.g.…”