Abstract
An inverse emulsion radical reaction was adopted to prepare poly(vinyl alcohol) (PVA)‐based microgels that contained titanium oxide (TiO2) or TiO2/Fe3O4, and the obtained microgels were applied to catalyze the degradation of methyl orange. First, well‐defined PVA was used to synthesize a PVA‐based macromonomer (PVAM) that contained carbon–carbon double bonds of tunable contents. Then, the composite microgels were prepared via the crosslinking reaction between PVAM and acrylic acid in the presence of TiO2 or TiO2/Fe3O4. Thermogravimetric analysis (TGA) and scanning electron microscope observation confirmed that the inorganic nanoparticles were well encapsulated within the microgels. TGA results showed that the loading efficiency of TiO2 was able to be controlled by varying the structure of PVAM. It was found that the microgels can efficiently catalyze the degradation of methyl orange. Moreover, the composite microgels possessed controllable and returnable catalysis ability. In addition, the separation of the composite microgels from aqueous solution could be quite easily accomplished by incorporating magnetic particles. POLYM. COMPOS., 38:132–137, 2017. © 2015 Society of Plastics Engineers
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
