Structural modification of Kraft lignin after acid treatment: characterisation of the apolar extracts and influence on the antioxidant properties in polypropylene
2005
Pouteau, C. | Cathala, B. | Dole, P. | Kurek, B. | Monties, B.
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.
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书目信息
其它主题
Polar compounds; Antioxidant activity; Vanillyl alcohol; Apolar compounds; Apolar extracts; Agricultural products (non-food plant); Forest products (chemicals); Polypropylenes; Kraft pulp
语言
英语
注释
2019-12-05
类型
Journal Article; Text
2024-02-27
MODS