Patent ID: 7524482

Claim:
A method of preparing a polymer composition essentially formed by a polymer based on titanium oxide, which is represented by the formula TiO x (OH) y (H 2 O) z in which x+y+z=3, in the form of a gel or in the form of a sol, wherein: the polymer comprises fibers wound concentrically with a periodicity, deduced from the space in between the fibers, of between 3.5 Å and 4 Å; each fiber is made up of TiO 6 octahedra; each TiO 6 octahedron shares two opposed edges with two adjacent octahedra in order to form infinite chains that grow along the axis of a fiber; and two adjacent chains form double strands by the communing of edges comprising: preparing a TiOCl 2 solution in dimethylformamide (DMF) by introducing TiOCl 2 dissolved in a concentrated aqueous HCl solution into the DMF, in proportions such that the concentration (C Ti ) of Ti atoms is less than 2M, heating the solution thus obtained to a temperature between room temperature and 90° C.; and holding the solution at this temperature for a certain time.