INCREASING THE PERFORMANCE AND PERMANENCE OF POLYMER STABILIZERS

A new generation of polysiloxane based polymer stabilizers is examined . The flexibility and versatility of polysiloxane backbones have allow ed the development of a family of products which provide outstanding r adical trapping efficiency, an unexpected resistance to extraction, an d a high degree of compatibility in certain polymeric systems. Functio nalization with graftable moieties results in a product which can be c hemically bound to the polymer itself. The key to success in this work was optimizing the balance of graft linkages and mobility of the stab ilizer chain.