@article{oai:mie-u.repo.nii.ac.jp:00006271,
 author = {船岡, 正光 and Funaoka, Masamitsu and 阿部, 勲 and Abe, Isao},
 journal = {三重大學農學部演習林報告 = Bulletin of the Mie University Forests},
 month = {Oct},
 note = {application/pdf, 3区分に溶剤分別したクラフトリグニンの性状を主として核交換法およびニトロベンゼン酸化分解法によって解析し、クラフト蒸解過程におけるリグニン分子の変化、特に縮合反応に考察を加えた。パルプ化過程で二次的に形成されたジフェニルメタン型縮合構造は、低分子量区分により高分子量区分でより少なかった。高分子量区分におけるジフェニルメタン型構造は、フェノール・ホルムアルデヒド樹皮型に富むとみなされ、一方低分子量区分には、ジフェニルメタン型縮合構造に加えて、側鎖同志の縮合により不活性化した構造もかなり多く存在することが示唆された。, Industrial kraft lignin (TOKAI Lignin F) was fractionated into three fractions (F-2, F-3 and F-4), based on the solubility to acetone, acetone-water, and methanol. The properties of each fraction were examined by nuclear exchange method and nitrobenzene oxidation. The reactivity of side chains of non-condensed units was similar to that of MWL, in high molecular weight fraction (F-2),whereas, was very low in low molecular weight fraction (F-4). The diphenylmethane types of condensation during the pulping process were less in high molecular weight fraction (F-2),  compared with low molecular weight fractions (F-3 and F-4). It was suggested that the diphenylmethane structures in high molecular weight fraction are rich in phenol-formaldehyde resin types, whereas, in low mokecular weight fraction, there are also more amounts of inactive structures condensed secondary between side chains, in addition to diphenylmethane structures.},
 pages = {27--39},
 title = {クラフトリグニンの化学構造  特に縮合型構造の分布について},
 volume = {12},
 year = {1983}
}