A Facile Photochemical Surface Modification Technique for the Generation of Microstructured Fluorinated Surfaces
- 5 October 2004
- journal article
- Published by American Chemical Society (ACS) in Langmuir
- Vol. 20 (23) , 10080-10085
- https://doi.org/10.1021/la049428s
Abstract
We describe a simple photochemical process which allows fluoropolymers to be chemically bound at room temperature onto SiO2 surfaces. To achieve this, at first a benzophenone silane is used to form a self-assembled monolayer on the surface of the substrate, which is subsequently coated with the fluoropolymer and irradiated with UV light of wavelength 365 nm. Using this very simple approach, we have been able to create ultrahydrophobic surfaces with very low surface free energies together with a good degree of control in thickness and composition as well as strong adhesion to the monolayer. The use of a UV-based process to attach the films on SiO2 surfaces opens the door for photopatterning of surfaces with fluorinated and nonfluorinated compounds to yield well-defined microstructures with spatial control of the wetting properties of the substrates.Keywords
This publication has 18 references indexed in Scilit:
- Characterization of fluoropolymer films deposited by magnetron sputtering of poly(tetrafluoroethylene) and plasma polymerization of heptadecafluoro‐1‐decene (HDFD) on (100)‐oriented single‐crystal silicon substratesSurface and Interface Analysis, 2002
- Ultrahydrophobic Polymer Surfaces Prepared by Simultaneous Ablation of Polypropylene and Sputtering of Poly(tetrafluoroethylene) Using Radio Frequency PlasmaMacromolecules, 1999
- Fluoroalkylsilane Monolayers Formed by Chemical Vapor Surface Modification on Hydroxylated Oxide SurfacesLangmuir, 1999
- Synthesis of Poly(styrene) Monolayers Attached to High Surface Area Silica Gels through Self-Assembled Monolayers of Azo InitiatorsMacromolecules, 1998
- Mechanism of Radical Chain Polymerizations Initiated by Azo Compounds Covalently Bound to the Surface of Spherical ParticlesMacromolecules, 1998
- Synthesis of Hyperbranched, Hydrophilic Fluorinated Surface GraftsLangmuir, 1996
- Terminal attachment of perfluorinated polymers to solid surfacesJournal of Applied Polymer Science, 1994
- Patterning Self-Assembled Monolayers: Applications in Materials ScienceLangmuir, 1994
- Photochemistry in polymer solids. 3. Kinetics for nonexponential decay of benzophenone phosphorescence in acrylic and methacrylic polymersMacromolecules, 1984
- Plasma polymerization. II. An ESCA investigation of polymers synthesized by excitation of inductively coupled RF plasma in perfluorobenzene and perfluorocyclohexaneJournal of Polymer Science: Polymer Chemistry Edition, 1980