A Novel Hydrogel with High Mechanical Strength: A Macromolecular Microsphere Composite Hydrogel


  • We thank Dr. Changcheng He and Mr. Fan Zhang for providing most of the macromolecular microspheres used. This research is the preliminary study of a project financially supported by the National Natural Science Foundation of China (50673013). Supporting Information is available online from Wiley InterScience or from the author.


original image

A novel hydrogel with a new, well- defined network structure is prepared through a two-step method in which the radiation-peroxidized macromolecular microspheres act as both initiators and crosslinkers. The macromolecular microsphere composite hydrogel (see figure) can effectively dissipate applied mechanical stress and has extremely high mechanical strength. Some of the hydrogels can nearly completely recover their original shapes, even after an extremely high strain (99.7%) in compression tests.