Abstract
The effects of bleaching of high-yield mechanical pulps (TMP, CTMP) with hydrogen peroxide under acidic and alkaline conditions were studied using different spectroscopic analytical methods. Diffuse reflectance laser flash photolysis (DRLFP) showed the differences in photochemical behavior reflecting transformation of chromophores upon treatment with acidic hydrogen peroxide. FT IR spectroscopic studies allowed to differentiate between the effects of the alkaline peroxide treatment with various stabilizing agents. FT-Raman technique provided additional information on localization of chemical changes after treatment under acidic and alkaline conditions, especially concerning the removal of coniferaldehyde-type groups.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Photochemistry and Photobiology A: Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
