In situ development of Zn/Cd-Incorporated poly(esteramide-urethane) from sustainable resource

It was for the first time we attempted to develop zinc and cadmium incorporated linseed oil based poly(esteramide-urethane) [Zn/Cd-LPEAUr], and investigated their structure, mechanism, and properties. The resin was synthesized in situ by the reaction of linseed oil derived fatty amide diol [HELA], divalent zinc/cadmium acetate and toluylene-2, 4 (6), diisocyanate [TDI; 2-12 wt %] with minimal solvent. The structural elucidation of Zn/Cd-LPEAUr was carried Out by FTIR, H-1-NMR, and C-13-NMR spectral techniques. TGA and DSC techniques were used to measure the thermal stability and Curing behavior of these resins, respectively. The physicomechanical and chemical/corrosion resistance properties were investigated by standard laboratory methods. The performance of Zn/Cd-LPEAUr coating was compared with reported oil based polyesteramide. Antibacterial test of the resins were performed by agar diffusion method against E. coli and S. aureus, and compared with those of petroleum-based metal containing polyurethanes. (c) 2008 Wiley Periodicals, Inc.