TY - SER AU - Pattaraporn Posoknistakul AU - Nazhad,Mousa M. AU - Matsumoto,Yuji AU - Nguyen,Thi Kim Oanh AU - Shipin,Oleg V. ED - Asian Institute of Technology, ED - The University of Tokyo, TI - The reaction of non-phenolic B-O-4 type lignin in alkaline media T2 - Thesis PY - 2013/// CY - Pathum Thani, Thailand PB - Asian Institute of Technology KW - Lignin KW - Alkaline pulping processes N1 - 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 N2 - 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 UR - http://203.159.5.9/ait-thesis/detail.php?q=B03706 ER -