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.

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No references found			Assessment of Wood Photodegradation by Microtensile Testing," Drvna Industrija, 46 (3), 123-132 (1995). A new look at the weathering performance of solid-wood decking ... by Schauwecker, Christoph; Preston, Alan; Morrell, Jeffrey J. / JCT CoatingsTech Polymer Photodegradation - Mechanisms and Experimental Methods, pp. Multiscale physical characterization of an outdoor-exposed polymeric ... by Gu, Xiaohong; Sung, Lipiin; Kidah, Bouchra; Oudina, Mounira; Clerici, Cyril; Hu, Haiqing; Stanley, D / JCT Research Polymers to which additives to enhance photodegradation (prooxidant additives) and further degradation have been developed by different groups (1), (2). Effect of UV radiation and pro-oxidant on PP biodegradability by Fechine, G.J.M.; Rosa, D.S.; Rezende, M.E.; Demarquette, N.R. / Polymer Engineering and Science			Photochromic Material photochromic reaction Photochromism photochromism method photoclinometer photoclinometry photocoagulator photocomposition photocomposition machines photoconduction Photoconductive Cell photoconductive device photoconductive film photoconductive gain factor photoconductive meter Photoconductivity photoconductivity gain photoconductor photoconductor diode photocopier Photocopying photocopying process photocoupler photocurrent photodarlington photodegradation PhotoDeluxe photodetachment photodetector photodevice photodichroic material Photodielectric Effect photodiffusion effect photodimerization Photodiode photodisintegration photodissociation photodosimetry photodraft PhotoDraw Photodynamic Action photoecology Photoelastic Effect Photoelastic Testing photoelasticity photoelectret photoelectric photoelectric absorption photoelectric absorption analysis Photoelectric Aerial Survey Photoelectric Amplifier			photocopier photocopier Photocopiers Photocopiers photocopies photocopies photocopy photocopy photocopy Photocopy machine Photocopy machine photocopying photocopying photocopying Photocopying Machine Photocopying Machine photocopying process Photocoupler photocoverage Photocromatic photocurrent photocurrent photocurrents photocurrents photodamage photodarlington photodecomposition photodegradable photodegradable photodegradable photodegradation PhotoDeluxe PhotoDerm PL photodermatitis Photodermatosis photodetachment Photodetector Photodetector Photodetector Photodetectors photodevice photodichroic material Photodielectric Effect photodiffusion effect photodimerization Photodiode Photodiode Photodiodes Photodiodes Photodischarge Spectroscopy photodisintegration photodisintegration photodisintegration photodisk photodisruption photodisruptive Photodissociation Photodissociation Photodissociation Photodissociation Dye Laser photodistribution

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