X-ray developing thermotropic hydrogel and preparation method thereof

The invention belongs to the technical field of medical polymer materials and in particular relates to X ray developing thermotropic hydrogel and a preparation method thereof. The X ray developing thermotropic hydrogel comprises an iodine-containing amphiphilic block copolymer and a solvent, wherein the iodine-containing amphiphilic block copolymer is obtained by bonding an iodine-containing micromolecule and an amphiphilic block copolymer by virtue of a covalent bond, and thermotropic gelatinization phase transformation can be carried out on a water system of the X ray developing thermotropic hydrogel along with temperature increase. The thermotropic hydrogel can be implanted under the skin and implanted into an abdominal cavity, an articular cavity and other specific parts of a human body in a mode of injection, and in situ formed hydrogel has good X ray developing performance, clear positioning and long-term tracing observation can be carried out on the hydrogel by adopting an X ray radiography technique. The thermotropic hydrogel also can serve as a medicine controlled release carrier, a tissue repairing support, a blood vascular embolization agent, a tissue marker and the like and can be used for realizing integration of diagnosis and treatment.