title: Modification of the adhesive properties of silicone-based coatings by block copolymers.
abstract: The improvement of the (bio)adhesive properties of elastomeric polydimethylsiloxane (PDMS) coatings is reported. This is achieved by a surface modification consisting of the incorporation of block copolymers containing a PDMS block and a poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) block in a PDMS matrix, followed by matrix cross-linking and immersion of the obtained materials in water. Contact angle measurements (CA), X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM) showed the presence of the PDMAEMA block at the surface, drastic morphology changes, and improved adhesion properties after immersion in water. Finally, underwater bioadhesion tests show that mussels adhere only to block copolymer-filled coatings and after immersion in water, i.e., when the PDMAEMA blocks have been brought to the coating surface. These observations highlight the significant role of hydrophilic groups in the surface modification of silicone coatings.
authors: Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers (CIRMAP), Research Institute for Materials Science and Engineering, University of Mons (UMONS) , 20 Place du Parc, 7000 Mons, Belgium.
authors: T Chinh
authors: TC
authors: Ngo
authors: Radostina
authors: R
authors: Kalinova
authors: Damien
authors: D
authors: Cossement
authors: Elise
authors: E
authors: Hennebert
authors: Rosica
authors: R
authors: Mincheva
authors: Rony
authors: R
authors: Snyders
authors: Patrick
authors: P
authors: Flammang
authors: Philippe
authors: P
authors: Dubois
authors: Roberto
authors: R
authors: Lazzaroni
authors: Philippe
authors: P
authors: Leclère
mesh_terms: D000327:Adsorption; D000818:Animals; D049872:Bivalvia; D004129:Dimethylpolysiloxanes / Q000138:chemical synthesis / Q000737:chemistry*; D008422:Materials Testing; D015394:Molecular Structure; D010316:Particle Size; D012828:Silicones / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D004129:Dimethylpolysiloxanes; D012828:Silicones; C013830:baysilon