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Abstract
A new organotin monomer, α-methyl p-acryloyloxy tributyltin benzoate, has been synthesized by the reaction of p-ydroxy tributyltin benzoate and methacrylic acid in the presence of dicyclohexylcarbodiimide. The monomer is polymerized by radical polymerization using azobisisobutyronitrile as initiator in tetrahydrofuran and dimethylformamide at 60°. The monomer and the unfractionated homopolymer have been characterized by tin analysis, i.r. and NMR spectral studies, solubility and viscosity measurements. The thermal properties were examined by thermogravimetry, differential thermogravimetry and differential scanning calorimetry. Biotoxicity testing of the parent compound, premonomer, monomer and homopolymer was performed with two bacterial species. The newly developed monomer and its homopolymer were compared with tributyltin acrylate, tributyltin methacrylate and tributyltin α-chloracrylate and their homopolymers.
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