Explanatory notes
… are polymers characterised by the presence of monosulphide linkages in the polymer chain, for example, poly(phenylene … the thioplasts of Chapter 40, which contain sulphur‑sulphur linkages. Polysulphides are used in coatings and in moulded … are polymers characterised by the presence of sulphone linkages in the polymer chain, for example, the product …