title: Surfactant-induced polymer segregation to produce antifouling surfaces via dip-coating with an amphiphilic polymer.
abstract: We propose a rational strategy to control the surface segregation of an amphiphilic copolymer in its dip-coating with a low-molecular-weight surfactant. We synthesized a water-insoluble methacrylate-based copolymer containing oligo(ethylene glycol) (OEG) (copolymer 1) and a perfluoroalkylated surfactant (surfactant 1) containing OEG. The dip-coating of copolymer 1 with surfactant 1 resulted in the segregation of surfactant 1 on the top surface of the dip-coated layer due to the high hydrophobicity of its perfluoroalkyl group. OEG moieties of surfactant 1 were accompanied by those of copolymer 1 in its segregation, allowing the OEG moieties of copolymer 1 to be located just below the top surface of the dip-coated layer. The removal of surfactant 1 produced the surface covered by the OEG moieties of the copolymer that exhibited antifouling properties. Using this strategy, we also succeeded in the introduction of carboxy groups on the dip-coated surface and demonstrated that the carboxy groups were available for the immobilization of functional molecules on the surface.
authors.affiliation: Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University , 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan.
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Yamamoto
authors.forename: Shigeru
authors.initials: S
authors.lastname: Kitahata
authors.forename: Ayane
authors.initials: A
authors.lastname: Shimomura
authors.forename: Kaya
authors.initials: K
authors.lastname: Tokuda
authors.forename: Takashi
authors.initials: T
authors.lastname: Nishino
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Maruyama
mesh_terms: D000327:Adsorption; D000818:Animals; D057219:Biofouling / Q000517:prevention & control*; D002417:Cattle; D008958:Models, Molecular; D011092:Polyethylene Glycols / Q000737:chemistry*; D011487:Protein Conformation; D012710:Serum Albumin, Bovine / Q000737:chemistry; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D013501:Surface-Active Agents; D012710:Serum Albumin, Bovine; D011092:Polyethylene Glycols