In this paper, one-dimensional TiO2 nanochains were prepared by polymerization of azide-alkyne click reactions. As a first step, the TiO2 nanoparticles (NPs) were esterified with 2-bromopropionic bromide, grafted by atom transfer radical polymerization (ATRP) of styrene, followed by azidation (TiO2-AP-N-3). Second, another part of the TiO2 NPs were modified by propargyl bromide (TiO2-AC equivalent to,CH). By azide-alkyne click reactions between the azide and alkyne-terminated TiO2 NPs, one-dimensional TiO2 nanochains linked by polystyrene (PS) was successfully synthesized. The chemical structure of the product was characterized using FTIR, TGA and TEM. (C) 2017 Elsevier B.V. All rights reserved.