Interfacial interactions of plasma-polymerized acrylic acid and an oxidized aluminium surface investigated using XPS, FTIR and poly(acrylic acid) as a model compound

Abstract

X‐ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) are used to characterize the interface between poly(acrylic acid) (PAA) and an aluminium oxyhydroxide (AlOOH) surface. Reaction of the PAA carboxylic acid functionality with hydroxyl groups at the surface of the oxide to form a monodentate carboxylate complex C(O)OAl was identified by FTIR. The degree of conversion of the acid to the salt at the interface was estimated to be 40% from the XPS analysis of PAA overlayers of varying thickness. An equivalent reaction was identified at the interface between AlOOH and a monolayer of strongly bonded plasma‐polymerized acrylic acid (ppAAc) that remained after solvent washing. The resistance of the monolayer of ppAAc to solvent washing was attributed to the formation of interfacial carboxylate complexes with the AlOOH surface. © 1998 John Wiley & Sons, Ltd.

A sol–bath–gel approach to prepare hybrid coating for corrosion protection of aluminum alloy

“…From the survey spectra ( Si − C bonding, respectively [15]. The O 1s high-resolution spectrum (Fig.…”

“…3d) can be fitted by four peaks, respectively centered at 532.0, 534.0, 530.9 and 532.8 eV. The two components located at 532.0 and 530.9 eV are assigned to AlOOH, and the one at 530.3 eV is assigned to Al(OH) 3 [15,16]. The peak located at 532.8 eV is usually attributed to the presence of a −Si [17].…”

“…ACCEPTED MANUSCRIPT 15 The authors acknowledge the financial support from the National Natural Science …”

Challenges in the characterization of plasma polymers using XPS

“…Data from[90,91].Alexander et al also reported larger FWHMs for plasma-polymerized acrylic acid coatings (1.4-1.5 eV) than for their conventional counterparts (1.1-1.2 eV), using a monochromated aluminium source[92]. Merche came to the same conclusion for plasma-polymerized polystyrene, which exhibited a FWHM of the C 1s peak of 1.6 eV compared to 1.3-1.4 eV for conventional polystyrene[93].As shown in Section 1, plasma polymers potentially consist of more random structures and may contain chains of different lengths, which generates a different global electronic structure.…”

Incorporation of Silver Ions into Zirconium Titanium Phosphate: A Novel Approach toward Antibacterial Activity

“…The C1s signal should be attributed to adventitious hydrocarbon. 39,40 Ti 2p 1/2 and Ti 2p 3/2 peaks are present at binding energies of 465.1 and 459.3 eV, respectively. 41,42 The P 2p signal peaks at 132.4 eV corresponding to binding energy for PO 4 3À .…”