03119nas a2200481 a 4500 20260818175512.0 151016s2013 th uu|m rtt 0| a1eng d .b1215748x AIT Thesis no.PP-13-03 Pattaraporn Posoknistakul The reaction of non-phenolic B-O-4 type lignin in alkaline media Pathum Thani, Thailand : Asian Institute of Technology, 2013 1 online resource (60 leaves) : ill. Thesis ; no. PP-13-03 A thesis submitted in partial fulfillment of the requirements for the Degree of Master of Engineering in Pulp and Paper Technology Thesis (M. Eng.) - Asian Institute of Technology, 2013 In this research, the lignin reactivity during alkaline delignification was quantitatively investigated focusing on the effect of the structural differences between syringyl and guaiacyl aromatics nuclei as well as various alkaline conditions on theÝ-O-4 bond cleavage rate.Moreover, the lignin compounds with 2-carbon side chains were studied to avoid the complex kinetics caused by the propanol diastereomers which hydrolyze at different rates and the Ü{u2013}and Þ{u2013}hydroxyls both participating in the displacement reaction.The presence of a syringyl nucleus, increasing of the reaction temperature as well as higher alkaline concentration influenced the increasing of the reaction rate. Lignin Alkaline pulping processes Nazhad, Mousa M., Chairperson Matsumoto, Yuji, Examination Committee Nguyen, Thi Kim Oanh, Examination Committee Shipin, Oleg V., Examination Committee Asian Institute of Technology, Scholarship Donor The University of Tokyo, Scholarship Donor Asian Institute of Technology. Thesis ; no. PP-13-03 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B03706 .b1215748x mnait u 240404 0 151016 m a u 4 000:001:PDF:b1215748:002310:0:0:0:0:0:0 Abstract--AIT Thesis no.PP-13-03 n mnait mnait store store 20 14 Barcode : 30050120668552 CREATED : 2015-10-16 RECORD # : i12861364 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120668537 CREATED : 2015-10-16 RECORD # : i12861376 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120902753 CREATED : 2020-05-08 RECORD # : i13287047 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120902738 CREATED : 2020-05-08 RECORD # : i13287060 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 97571 97571 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.PP-13-03 30050120668552 2026-08-18 17:55:12 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.PP-13-03 30050120668537 2026-08-18 17:55:12 1 2026-08-18 20 0 0 0 0 MAIN MAIN store 2026-08-18 0 AIT Thesis no.PP-13-03 30050120902753 2026-08-18 17:55:12 3 2026-08-18 14 0 0 0 0 MAIN MAIN store 2026-08-18 0 AIT Thesis no.PP-13-03 30050120902738 2026-08-18 17:55:12 4 2026-08-18 14