Oligomers of Poly(anhydride): Study of Interaction in Coating Binder

Polyanhydrides are largely used in biomed- ical and pharmaceutical fields because of their biodegrad- ability and controlled degradation. In this work, oligomers were investigated as film binders for environmental appli- cations. To overcome the main disadvantages of polyanhy- drides (low solubility in common solvents and high melting points), oligomers based on sebacic acid were pre- pared. Characterization was carried out by nuclear mag- netic resonance and electrospray ionization to obtain chemical structures of the products. The formation of weak interactions, which confer cohesion between chains, allows film properties to be observed. The impact of the solvent polarity on the specific organization was investi- gated by a combination of focused methods: capillary vis- cosimetry, IR spectroscopy, polarized light microscopy, and X-ray diffraction. V C 2012 Wiley Periodicals, Inc. J Appl Polym Sci 000: 000-000, 2012