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UV exposure and temperature effects on curing mechanisms in thin linseed oil films: Spectroscopic and chromatographic studies
Author(s) -
Boyatzis S.,
Ioakimoglou E.,
Argitis P.
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10117
Subject(s) - curing (chemistry) , linseed oil , fourier transform infrared spectroscopy , peroxide , materials science , ultraviolet visible spectroscopy , chemistry , infrared spectroscopy , uv curing , chemical engineering , polymer chemistry , organic chemistry , engineering
The influence of thermal and photochemical treatment in the curing mechanisms of thin linseed oil films is studied. The role of copper acetate pigments is also investigated under the above conditions. UV and FTIR absorption spectroscopy and chromatographic product analysis are used as the main analytical techniques, which allowed the identification of significant changes in the curing mechanism in each case. Yellowing, crosslinking, and fragmentation inside the film material proceed to a different extent according to the conditions. Peroxide destruction is induced by UV exposure at early curing stages and affects the course of the yellowing process. Yellow product formation is also favored by curing at elevated temperatures, which is accompanied in this case by decreased crosslinking in the cured film. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 936–949, 2002; DOI 10.1002/app.10117