Abstract
Chlorosulfonated polyethylene (CSPE) is fairly widely employed in production of artificial leathers, the building industry, and others. Like all the halogen-containing polymers, CSPE is conspicuous for its low stability. There are two types of framing groups within the macromole- cules—Cl and SO2Cl, and consequently under the thermal and other types of physical effects CSPE is decomposed with elimination of two low-molecular products: HCl and SO2. It is clear that the thermal stability of the macromolecules, as many other service characteristics of CSPE, depends on the degree of the polymer chlorosulfonation, the character of distribution of Cl and SO2Cl in the chain, and also on the presence of different labile structures in the macromolecules, such as vicinal chlorines and SO2Cl groups, P-chloroallyl groups, Cl and S02Cl groups at tertiary carbons, etc.
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