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Photo-oxidation reactions, polymer weathering

Plastic films exposed to natural weather undergoes photo-oxidative reactions. Sunlight, together with oxygen, initiates the chemical reactions in the polymer matrix. The important aspects of sunlight include sunshine duration, total solar radiation, and UV radiation that may be used in modeling of the degradative processes [6-8],... [Pg.190]

Photo-oxidation is the principal reaction in the degradation of polymers during outdoor weathering. It is generally admitted that the mechanism of... [Pg.405]

In the photoageing of polycarbonates, photo-oxidation has been shown to be a more important process than the photo-Fries reaction. The photo-oxidation of epoxy-resins has been found to depend on the type of hardener and its concentration. A correlation has been observed between the changes in chemical structure and thermally stimulated current of poly(vinyl alcohol) during photo-oxidation. Other studies of interest include the weathering of polymers outdoors,effect of ozonation on polymers, effect of drawing, effect of biodegradation, and changes in mechanical properties of thermoplastics. ... [Pg.543]

See other pages where Photo-oxidation reactions, polymer weathering is mentioned: [Pg.509]    [Pg.9238]    [Pg.1461]    [Pg.52]    [Pg.358]    [Pg.312]    [Pg.7752]    [Pg.371]    [Pg.793]    [Pg.541]    [Pg.35]    [Pg.38]    [Pg.101]    [Pg.288]    [Pg.239]    [Pg.266]    [Pg.91]    [Pg.102]   
See also in sourсe #XX -- [ Pg.2 , Pg.1461 ]



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Photo-oxidation reactions

Photo-reaction

Polymer oxide))

Polymer photo

Polymers oxidation reactions

Polymers weathering

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