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2007-01-01 - Article/Dans un journal avec peer-review - Anglais - 1 page(s)

Snyders Rony , Zabeida O., Shingel K., Roberge C., Martinu L., Klemberg-Sapieha J.E., "Adhesion mechanism of a PEG-based hydrogel on N2 plasma treated polypropylene: XPS and chemical derivatization study" in Surface Science, 601, 1, 112

  • Edition : Elsevier Science, Amsterdam (The Netherlands)
  • Codes CREF : Chimie des solides (DI1316), Physique des plasmas (DI1233)
  • Unités de recherche UMONS : Chimie des interactions plasma-surface (S882)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)

Abstract(s) :

(Anglais) We studied the mechanism of adhesion between N2 plasma treated polypropylene (PP/N2) backing and a hybrid hydrogel (HG) produced by chemical crosslinking between poly(ethylene glycol) and soy albumin. The work of adhesion, measured by peel testing, was found to be 25 times higher for PP/N2 compared to untreated PP (˜5.0 J/m2 versus ˜0.2 J/m2). In order to understand the adhesion mechanism, we performed a detailed analysis of the surface chemical composition of PP and PP/N2 using X-ray photoelectron spectroscopy (XPS), chemical derivatization and attenuated total reflectance infra-red (ATR-IR) measurements. The results confirm incorporation of different nitrogen- (amine, amide,…) and oxygen- (hydroxyl, carboxyl,…) containing chemical groups on the PP/N2 surface. The derivatized functions were primary amine, hydroxyl, carboxyl and carbonyl groups. Chemical derivatization reactions validated the XPS results (except for carbonyl groups), and they clearly underlined the essential role of primary amine groups in the adhesion process. In fact, after derivatization of the amine functions, the work of adhesion was found to be 0.41 ± 0.12 J/m2. Participation of amine groups in the formation of covalent bonds at the interface between PP/N2 and HG was directly confirmed by ATR-IR measurements.

Notes :
  • (Anglais) Lecture en ligne: http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TVX-4M0BF72-6-12&_cdi=5546&_user=532054&_pii=S0039602806009551&_origin=search&_coverDate=01%2F01%2F2007&_sk=993989998&view=c&wchp=dGLzVtz-zSkzk&md5=ebcfa9d1055a1c8f1a843ae45d945366&ie=/sdarticle.pdf
  • (Anglais) Publié en ligne le 27 septembre 2006
Identifiants :
  • DOI : 10.1016/j.susc.2006.09.011