Functionalized phosphazenes with immobilized phenolic antioxidants for polyolefin stabilization
Sprache des Vortragstitels:
Polymers: Design, Function and Application ((PDFA)
Sprache des Tagungstitel:
One approach to solve this leaching problem is to bind sterically hindered phenols as primary antioxidative stabilizers to cyclic phosphazene as well as to linear polyphosphazenes. Two different types of polyphosphazenes were produced. One polymer type was fully substituted with the stabilizer and the other polymer type contained an additional substituent to enhance the compatibility of the antioxidant (AO) with the polymer. All phosphazene based antioxidants were characterized and their stabilizing effects were determined using DSC. Additionally, the hydrolysis resistances of the phosphazene based antioxidants were determined in water at different temperatures. Recent results of this innovative approach using polyphosphazene carriers for AOs are presented.