2D NMR-STUDY OF RESIDUAL LIGNIN IN BEECH KRAFT PULP COMBINED WITH SELECTIVE CLEAVAGE WITH PIVALOYL IODIDE

被引：20

作者：

FUKAGAWA, N

MESHITSUKA, G

ISHIZU, A

机构：

[1] Department of Forest Products, Faculty of Agriculture, The University of Tokyo, Tokyo, Yayoi 1-1-1, Bunkyo-ku

来源：

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY | 1992年 / 12卷 / 04期

关键词：

D O I：

10.1080/02773819208545790

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Structures of acetylated residual lignin obtained from unbleached beech kraft pulp were investigated by 2D NMR in combination with selective cleavage of non-phenolic alpha-alkyl ether bonds with pivaloyl iodide generated in situ from pivaloyl chloride / sodium sodium iodide. Beta-O-4 and resinol structures still remained in this polymer lignin. Furthermore, carbohydrates were proved to be linked glycosidically to benzyl carbons of lignin. Possibly this inhibits complete delignification during kraft pulping.

引用

页码：425 / 445

页数：21

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