Superhydrophobic Polypropylene surfaces prepared with TiO2 nanoparticles functionalized by dendritic polymers

CINTIA BELEN CONTRERAS; FRANCISCO N. FIGUEROA; DANIEL WEIBEL; MIRIAM C. STRUMIA

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY

JOHN WILEY & SONS INC

Lugar: New York; Año: 2018

0887-624X

ybrid inorganic-organic nanomaterials have received increasing interest due to the possibility of implementing different functions and characteristics within a single material. Their functionalities are a consequence of the synergy of the properties of distinct building blocks and are related to their varied natures and spatial locations. In this work, we present the development of superhydrophobic properties on Polypropylene (PP) surfaces using hybrid nanomateriales from TiO2 nanoparticles (NPs) and dendronized polymers. The dendron acryl Behera´s amine was successfully grafted on the TiO2 NP surfaces by Surface-Initiated Atom Transfer Radical Polymerization (SI-ATRP) and a core-brush material was obtained. Finally, PP substrates were coated with NP hybrids to produce superhydrophobic surfaces with water contact angles of over 158 degrees. A dendronized effect allowed us to be able to control the steric congestion of the polymeric shell of NPs from the Wenzel to the Cassie Baxter sta