Chemical kinetics of photo-oxidative degradation of dried trilinolein film

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AuthorSearch for:
TypeArticle
Journal titleJournal of Paint Technology
ISSN0094-8691
Volume39
Issue506
Pages134143; # of pages: 10
Subjectphotodegradation; exterior paints; chemical kinetics; carbon; Buildings
AbstractIn a continuing effort toward better understanding of the basic degradation processes taking place in exterior paint coatings, free films of dried trilinolein were subjected to controlled degradation. Films were exposed to oxygen, ultraviolet radiation, and water vapor in a closed system in various combinations, and the changes in chemical composition of the film and of the volatiles evolved were analyzed periodically by infrared spectrophotometry. The formation of carbonyl compounds in the film and the evolution of volatile carbon compounds were attributed to internal body scissions and end chain-scission reactions, respectively. Combined, these reactions give the measure of the deterioration and non-film formation reactions occurring in the film in the early stages of exposure.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-RP-315
NRC number9575
1310
NPARC number20378843
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Record identifier04a1b7f3-f758-4100-9bb5-64b9e8ecb7e1
Record created2012-07-24
Record modified2016-05-09
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