Spectral and photophysical properties of thermomechanical pulps bleached with the use of acidified and alkaline hydrogen peroxide

• Published in: Journal of photochemistry and photobiology. A, Chemistry. Vol. 184; no. 1; pp. 66 - 72
• Main Authors: Sikorska, Ewa, Khmelinskii, Igor V., Krawczyk, Alina, Oliveira, Anabela S., Ferreira, Luis F.V., Wójciak, Adam, Sikorski, Marek
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.11.2006
• Subjects: Diffuse reflectance laser flash photolysis; Laser induced emission; Paper photoyellowing; Phenoxyl radicals methoxy-substituted; Thermomechanical pulps; Phenoxyl radicals methoxy-substituted; Thermomechanical pulps; Paper photoyellowing; Diffuse reflectance laser flash photolysis; Laser induced emission

We characterized spruce thermomechanical high-yield pulps subject to a variety of non-delignifying hydrogen peroxide treatments. Apart from standard technological analysis, spectral and photophysical properties of the sample pulps were evaluated using steady-state diffuse reflectance spectroscopy an...