title: Introduction of amine groups on poly(ethylene) by plasma immobilization of a preadsorbed layer of decylamine hydrochloride.
abstract: In order to introduce amine groups on poly(ethylene) (PE) surface, PE surfaces were preadsorbed with decylamine hydrochloride (DA.HCl) and subsequently treated with an argon plasma. It was shown by XPS (X-ray Photoelectron Spectroscopy), that approximately half of the preadsorbed (mono)layer was immobilized and that a substantial part (60-70%) of the incorporated nitrogen containing groups were amine groups. The availability of the surface amine groups for reactions was investigated by applying a gas phase reaction with 4-trifluoromethylbenzaldehyde and by a reductive methylation reaction in aqueous solution with 14C formaldehyde. A maximal number of reactive amine groups was found after a plasma treatment time of 2 s. The reductive methylation reaction was used to estimate the surface concentration of amine groups resulting in a typical surface concentration of 1 x 10(-6) mol/m2 after a plasma treatment time of 2 s.
authors: Department of Chemical Technology, University of Twente, Enschede, The Netherlands.
authors: J G
authors: JG
authors: Terlingen
authors: L M
authors: LM
authors: Brenneisen
authors: H T
authors: HT
authors: Super
authors: A P
authors: AP
authors: Pijpers
authors: A S
authors: AS
authors: Hoffman
authors: J
authors: J
authors: Feijen
mesh_terms: D000327:Adsorption; D000588:Amines / Q000737:chemistry; D001128:Argon; D001672:Biocompatible Materials / Q000138:chemical synthesis* / Q000737:chemistry; D011095:Polyethylenes / Q000138:chemical synthesis* / Q000737:chemistry; D013052:Spectrometry, X-Ray Emission; D013499:Surface Properties
chemical_list: D000588:Amines; D001672:Biocompatible Materials; D011095:Polyethylenes; D001128:Argon; C004744:decylamine