Biocides organotins

The organotins have a wide range of uses, which are largely specific for the different organotins. Thus, mono-and disubstituted organotin compounds are not suitable as biocides, and trisubstituted organotin compounds are not suitable as PVC stabilizers. 

Organotin compounds (biocides and polymer stabilisers) in water were analysed by means of HS-SPME-GC and GC-MS (SIM) [296],... 

The appreciable advances in the field of organotin compounds are associated with the elucidation of their mechanisms of formation, detection of new properties and their application as biocides, stabilizers, antifouling, and antimicrobic coatings, etc. 

Recent survey articles 61,62) are mainly concerned with the synthesis, properties and applications of carbon-chain organotin polymers and with the use of organotin compounds in polymer chemistry as stabilizers, fungicides, etc. It should particularly be noted that polymers on the basis of trialkylstannyl methacrylates exhibit biocide properties. 

Organotin polymers containing one carboxyalkyl group bound to the tin atom in each recurring monomer unit are obtained by polymerization of an organotin acid of the type Sn[(CH2)mCOOH]4. in aqueous medium at 60 °C. The powdery products are used as biocides and stabilizers for synthetic polymers 81). 

Organotin epoxide monomers 30,100 104) containing fairly reactive oxirane rings and both C=C and Sn—C bonds can be used as starting components for the synthesis of new polymers, chemically active stabilizers and biocides for polymeric materials, e.g. for PVC. 

RjSnX RjSnX, RjSnXj, RSnXj RjSnXj, RSnXj Agricultural spraying, volatilization from biocidal treatments, antifouling paint sprays Incineration of organotin-treated or -stabilized waste materials. Glass coating operations to produce SnOj films... 

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