title: Elaboration of nano-structured grafted polymeric surface.
abstract: The surface grafting of multi-polymeric materials can be achieved by grafting as components such as polymers poly(N-isopropylacrylamide) and/or surfactant molecules (hexatrimethylammonium bromide, polyoxyethylene sorbitan monolaurate). The chosen grafting techniques, i.e. plasma activation followed by coating, allow a large spectrum of functional groups that can be inserted on the surface controlling the surface properties like adhesion, wettability and biocompatibility. The grafted polypropylene surfaces were characterized by contact angle analyses, XPS and AFM analyses. The influence of He plasma activation, of the coating parameters such as concentrations of the various reactive agents are discussed in terms of hydrophilic character, chemical composition and morphologic surface heterogeneity. The plasma pre-activation was shown inevitable for a permanent polymeric grafting. PNIPAM was grafted alone or with a mixture of the surfactant molecules. Depending on the individual proportion of each component, the grafted surfaces are shown homogeneous or composed of small domains of one component leading to a nano-structuration of the grafted surface.
authors.affiliation: LUNAM Université, Laboratoire Polymères, Colloïdes et Interfaces, UMR CNRS 6120 - Université du Maine, av. O. Messiaen, 72085 Le Mans, France.
authors.forename: Tjasa
authors.initials: T
authors.lastname: Vrlinic
authors.forename: Dominique
authors.initials: D
authors.lastname: Debarnot
authors.forename: Miran
authors.initials: M
authors.lastname: Mozetic
authors.forename: Alenka
authors.initials: A
authors.lastname: Vesel
authors.forename: Janez
authors.initials: J
authors.lastname: Kovac
authors.forename: Arnaud
authors.initials: A
authors.lastname: Coudreuse
authors.forename: Gilbert
authors.initials: G
authors.lastname: Legeay
authors.forename: Fabienne
authors.initials: F
authors.lastname: Poncin-Epaillard