Structural modification of Kraft lignin after acid treatment: characterisation of the apolar extracts and influence on the antioxidant properties in polypropylene

被引：42

作者：

Pouteau, C

Cathala, B

Dole, P

Kurek, B

Monties, B

机构：

[1] INRA United Physicochim, URCA FARE, UMR, F-251686 Reims, France

[2] Equipe Biochim Macromol Veg Biotechnol Polymers, F-251686 Reims, France

来源：

INDUSTRIAL CROPS AND PRODUCTS | 2005年 / 21卷 / 01期

关键词：

acid-treated lignin; kraft lignin; vanillyl alcohol; antioxidant; ageing; polypropylene;

D O I：

10.1016/j.indcrop.2004.01.003

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Kraft lignin and vanillyl alcohol (4-hydroxy-3-methoxybenzyl alcohol, used as model compound) were treated under acidic conditions (sulphuric and hydrochloric acid). Hydroxyl content and molar masses of dichloromethane extracted fractions were determined. The acidic treatment decreased the aliphatic hydroxyl content and so lowered the polarity of the lignin molecules without derivatization. Antioxidant properties in polypropylene of the treated fractions were increased compared to that of untreated ones. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：101 / 108

页数：8

共 26 条

[1] Antioxidant properties of phenolic lignin model compounds [J].