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photodegradation |
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photodegradation [¦fōd·ō‚deg·rə′dā·shən] (organic chemistry) Chemical changes resulting from the absorption of light that reduce the useful properties of materials, particularly polymers. The chemical changes can include bond scission (especially of the molecular backbone), color formation, crosslinking, and chemical rearrangements. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The strong illumination caused substantial photodegradation of the fluorescein solution in the capillary. Sinclair also sees interest in using ECM products in agricultural films (with the addition of a photodegradation promoter), blow molded shampoo and motor-oil bottles, and protective overwrap used in shipping new cars. Discussions of accelerated aging and simulated service aging will examine long-term compression stress relaxation, crack growth propagation, wear and fatigue (compression, tension, shear and bending), ozone, oxidative and photodegradation, and fluid immersion and humidity. |
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