| Abstrakt: |
A series of hyperbranched poly (urea-urethane) s (HPUs) containing short fluoroalkyl chain and reactive groups (HPUFs) capable as hydrophobic and oleophobic coating materials were synthesized. The obtained polymers were characterized by FTIR (fouier transform-infrared spectroscopy ), ¹ H NMR (nuclear magnetic resonance), 13C NMR, 19F NMR, GPC(gel permeation chromatography), TGA ( thermogravimetric analyzer ), and XPS (X-ray photoelectron spectroscopy) analyses. Highly hydrophobic and oleophobic cotton fabrics could be achieved from these fluorinated hyperbranched polymers by solution-immersion coating method. The static contact angles reached to 143°, 114°, and 92° for water, hexadecane, and decane, respectively. The water and oil repellency ratings were 90 and 6, respectively, and still kept 80 and 5, respectively, after 10 soaping cycles at 50 °C. [ABSTRACT FROM AUTHOR] |
