X-ray photoelectron, infrared, and Raman spectroscopy studies of novel submicrometric poly[(methacrylato)aluminum(III)]

• Published in: Journal of applied polymer science 2006-12, Vol.102 (6), p.5212-5223
• Main Authors: Vilchis-Nestor, Alfredo R., Sánchez-Mendieta, Victor, Ureña-Nuñez, Fernando, López-Castañares, Rafael, Ascencio, Jorge A.
• Format: Article
• Language: English
• Subjects: Applied sciences; Exact sciences and technology; FTIR spectroscopy; Inorganic and organomineral polymers; metal-polymer complexes; Physicochemistry of polymers; Preparation; Raman spectroscopy; X-ray photoelectron spectroscopy; γ-radiation polymerization
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.24753

Poly[(methacrylato)aluminum(III)] was prepared by applying γ‐radiation to the corresponding aluminum(III) methacrylate monomer. Scanning electron microscopy images show pellets of ∼ 500 nm for the aluminum(III) methacrylate monomer, and submicrometric fibers‐made granules for the aluminum‐containing polymers. X‐ray photoelectron spectroscopy measurements reveal two peaks in the Al 2p core‐level spectra of the monomer and of the poly[(methacrylato)aluminum(III)], which means that two different coordination modes for the Al(III) ions might be present in these compounds. Infrared and Raman spectroscopy studies confirmed that the structure for this novel coordination polymer consists of hexa‐coordinated Al(III) ions linked by the carboxylate groups of methacrylate ligands, along with hydroxyl groups and coordinated water, in a combination of monodentate and bridging bidentate coordination modes. Hence, combination of spectroscopic methods is a helpful tool to get valuable information on the structure of nonmacrocrystalline coordination polymers. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102:5212–5223, 2006