caa a22 4500 469056592 CHVBK 20180323132845.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1163/156856792X00182 doi (NATIONALLICENCE)springer-10.1163/156856792X00182 Free radical induced oxidation of alkoxyphenols: Some insights into the processes of photoyellowing of papers [Elektronische Daten] [I. Shkrob, M. Depew, J. Wan] The photoyellowing of lignin-rich papers has been demonstrated to depend on the formation of phenoxyl radical intermediates and their ultimate conversion into various products, including quinones. Molecular oxygen has also been observed as a necessary adjunct to this process, although the mechanism is not understood. This work demonstrates the requirement for the reaction of O2 with active radical intermediates (in processes analogous to autoxidation reactions) in order for the photoyellowing of the phenolic moieties to occur. Photo-oxidations of a variety of alkoxyphenols and their reactions with model alkyl, alkoxy and alkylperoxy radicals are studied by CIDEP. Springer, 1992 Shkrob I. Department of Chemistry, Queen's University, K7L 3N6, Kingston, Canada aut Depew M. Department of Chemistry, Queen's University, K7L 3N6, Kingston, Canada aut Wan J. Department of Chemistry, Queen's University, K7L 3N6, Kingston, Canada aut Research on Chemical Intermediates Springer Netherlands 17/3(1992-09-01), 271-285 0922-6168 17:3<271 1992 17 11164 https://doi.org/10.1163/156856792X00182 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1163/156856792X00182 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shkrob I. Department of Chemistry, Queen's University, K7L 3N6, Kingston, Canada aut NATIONALLICENCE 700 1- Depew M. Department of Chemistry, Queen's University, K7L 3N6, Kingston, Canada aut NATIONALLICENCE 700 1- Wan J. Department of Chemistry, Queen's University, K7L 3N6, Kingston, Canada aut NATIONALLICENCE 773 0- Research on Chemical Intermediates Springer Netherlands 17/3(1992-09-01), 271-285 0922-6168 17:3<271 1992 17 11164 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer