Organotin polyesters were formed from the interfacial polycondensation of the disodium salt of thiodiglycolic acid and various organotin dihalides.  Reactions are rapid occurring in less than 15 seconds at room temperature.  Yield varies from 2-91% and the chain length from 20 to 1,200.   The longest alkyl chains have the lowest chain lengths and lowest percentage yields consistent with steric hindrance of the alkyl group playing a role in the polymerization process. Infrared spectral analysis shows the presence of the Sn-O linkage and is consistent with the geometry about the tin being generally a mixture of tetrahedral or non-bridging and octahedral or bridging.

Organotin polyesters containing thiodiglycolic acid: Synthesis

244th National Meeting (2012)

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