Surface amination of PEEK film by selective wet-chemistry

• Published in: Polymer (Guilford) Vol. 39; no. 22; pp. 5359 - 5369
• Main Authors: Henneuse-Boxus, Catherine, Boxus, Thierry, Dulière, Eric, Catherine Pringalle, Tesolin, Lorenzo, Adriaensen, Yasmine, Marchand-Brynaert, Jacqueline
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.10.1998; Elsevier
• Subjects: Applied sciences; Chemical modifications; Chemical reactions and properties; Exact sciences and technology; Organic polymers; PEEK film; Physicochemistry of polymers; poly(ether ether ketone); surface wet-chemistry; poly(ether ether ketone); PEEK film; surface wet-chemistry; Surface reaction; Hydroxylation; Aminoamide; Deprotection; Aromatic polymer; Polyetheretherketone; Experimental study; Organic carbamate; Quantitative surface analysis; Optimization; Chemical substitution; Chemical modification; Wettability; Amination; Functionalization; Surface properties; Processing parameter; Liquid solid reaction; Successive reaction
• ISSN: 0032-3861; 1873-2291
• DOI: 10.1016/S0032-3861(97)10216-6

Using 4,4′-dimethoxybenzhydrol as soluble mimic of the reduced poly(aryl ether ether ketone) (PEEK) monomer unit, we established the best experimental conditions to replace the hydroxyl group with an amine function, on the one hand, and to fix an amino acid residue, on the other hand. The selected strategies were then adapted to the surface functionalization of the PEEK-OH film obtained by reduction of the PEEK precursor. Thus, reaction with phenylcarbamate followed by LiOH hydrolysis gave the PEEK-NH 2 film characterized by θ w, multiple internal reflection (MIR) and X-ray photoelectron spectroscopy (XPS). The PEEK-NH 2 was further derivatized with 1,3-propanesultone. Reaction of PEEK-OH with N′-(9-fluorenylmethoxycarbonyl) ( L) glutamine followed by piperidine deprotection gave the PEEK-glutamine film characterized by θ w, MIR and XPS.