The effect of dyes on photo-induced chemiluminescence emission from polymers
Millington, Keith R., Zhang, Hu, Jones, Michael J. and Wang, Xungai 2010, The effect of dyes on photo-induced chemiluminescence emission from polymers, Polymer degradation and stability, vol. 95, no. 1, pp. 34-42, doi: 10.1016/j.polymdegradstab.2009.10.014.
Attached Files
Name
Description
MIMEType
Size
Downloads
Title
The effect of dyes on photo-induced chemiluminescence emission from polymers
Weak photo-induced chemiluminescence (PICL) emission is observed when polymers are exposed to UVA or visible light. The presence of dyes can either increase PICL intensity via Type I photosensitisation which generates polymer free radicals, or reduce it via photo-protection. PICL studies on the eight Blue Wool Standards (BWSs) that are used commercially as lightfastness standards show higher PICL intensity from the least photostable BWSs that use triphenylmethane dyes and lower intensity from more photostable BWSs using UVA and visible wavelengths. The relative PICL intensities do not correlate in a stepwise manner with lightfastness ratings of the BWSs. However dye/polymer combinations that emit high levels of PICL relative to the undyed material are unlikely to have acceptable lightfastness. The xanthene dyes fluorescein and eosin Y are more strongly photosensitising than triphenylmethane dyes on wool and both produce higher PICL emission than undyed wool when irradiated with visible light.
Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.