P108 木質系バイオマスの加溶媒分解法による材料変換(ポスター発表)

概要

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Japanese cedar was subjected to the acid catalyzed solvolysis using a mixed solvent of glycols and cyclic carbonates. In this one step solvolysis, lignin having oxyalkyl chains such as polyethylene glycol (EG) chains was prepared together with furfurals and levulinic acid from carbohydrate components. Solvolysis lignin was expected to be utilized as macromolecular surfactants from its amphiphile like chemical structure. However, dissolution properties to water and/or chain flexibility of introduced oxyalkyl chains of solvolysis lignin must be improved for the surfactant application. Another possibility of the solvolysis lignin could be found in the plastic applications. Thermal molding abilities of solvolysis lignin could be improved by the introduction of propylene glycol units in oxyalkyl chains instead of EG units. Solvolysis lignins having polypropylene glycol chains could be spun continuously by melt spinning using a laboratory mixing extruder. This lignin fibre could be thermally stabilized by removing PPG chains through a simple acid washing process. This result would indicate that solvolysis lignin fibres could be converted into carbon fibers with simplified process.
一般社団法人日本エネルギー学会の論文
2009-01-13