Inorganic-organic hybrid materials of P(CD-co-AA)/TiO₂ were prepared by sol-gel process, and in order to introduce the chemical bond between the organic polymer chain and inorganic network of the hybrid, the carboxyl functional group was introduced into polymer side chain by copolymerization between allyl-β-CD and acrylic acid (AA). The results of solvent extraction and FT-IR show that there is the chemical bond between the TiO₂ phase and the polymer matrix of the hybrids. The hybrid materials were characterized by XRD, SEM and TGA, while the results indicate that the TiO₂ phase and polymer matrix were well dispersed evenly with each other. At the same time, it was found that the TiO₂ content influenced the structure and properties of the hybrid materials. The hybrid materials acquired more excellent thermal stability and the intermolecular regularity when the content of TiO₂ in the hybrid was 60% (w).

Key words: sol-gel, cyclodextrin polymer, titanium dioxide, inorganic-organic hybrid