Abstract
Antimicrobial properties of some newly prepared oil based organotin polymers by the condensation reaction between fatty amide diol (N,N′-bis(2-hydroxyethyl) castoroil fatty amide) obtained from castoroil and organotin dihydroxides (dibutyltin dihydroxide, dimethyltin dihydroxide and diphenyltin dihydroxide) have been studied by employing both Gram-positive (Lactobacillus, Staphylococcus aureus) and Gram-negative (Pseudomonas putida, Pseudomonas fluorescens, E. coli) bacteria. The structural studies of these three polymers were carried out by FTIR, 1HNMR and 13 CNMR spectroscopic techniques. Standard laboratory methods were used to study the physiochemical characteristics like acid value, hydroxyl value, saponification value, iodine value, specific gravity and viscosity. A comparative study of the thermal stability was analysed by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). All three polymers have been found fairly active against the tested bacterial species.
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