麦草碱木质素烷基化反应的研究

›› 2001, Vol. 21 ›› Issue (2): 39-43.

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ALKYLATION OF WHEAT STRAW ALKALINE LIGNIN

CHEN Fan-geng, LU Zhuo-min, TU Bin

Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, Academic Sinica, Guangzhou 510650, China

Received:2000-11-14 Revised:1900-01-01 Online:2001-06-30 Published:2001-06-30

Abstract

Abstract: Alkylation of wheat straw alkaline lignin was conducted by reacting lignin with different alkyl halides.Solubility and surface activity of lignin were improved after alkylation. Effect of alkylating reagents,reaction time, temperature and pH value on alkylation was investigated in detail. Surface activity of alkaline lignin was improved by alkylation with dodecyl bromide at 170 ℃,3 h.Further improvement in surface activity was achieved by sulfonation of the alkylated soda lignin at 130 ℃,pH 14.

Key words: alkaline lignin, alkylation, sulfonation, surface activity

CLC Number:

TQ351.365

CHEN Fan-geng;LU Zhuo-min;TU Bin . ALKYLATION OF WHEAT STRAW ALKALINE LIGNIN[J]. , 2001, 21(2): 39-43.

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ALKYLATION OF WHEAT STRAW ALKALINE LIGNIN

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