Mechanistic Aspects of the Effects of Stress on the Rates of Photochemical Degradation Reactions in Polymers

摘要: Abstract This review examines the mechanistic origins of effects stress on photochemical degradation rates polymers. Recent studies have shown that tensile and shear stresses accelerate rate Conversely, compressive generally retards degradation. After an initial discussion auto‐oxidation mechanism, three primary hypotheses purport to explain how affects are examined. The first hypothesis is attributed Plotnikov, who proposed changes quantum yields reactions lead bond photolysis. second hypothesis, a number researchers, says ability geminate radical pairs, formed in cleavage reactions, recombine. third proposes subsequent formation. A further attempt account fo...