Effect of high-energy radiation and alkali treatment on the properties of cellulose

被引：43

作者：

Földváry, CM ^{[1
]}

Takács, E ^{[1
]}

Wojnárovits, L ^{[1
]}

机构：

[1] Hungarian Acad Sci, Chem Res Ctr, Inst Isotopes & Surface Chem, H-1525 Budapest, Hungary

来源：

RADIATION PHYSICS AND CHEMISTRY | 2003年 / 67卷 / 3-4期

关键词：

cotton-cellulose; cellulose powder; radiation degradation; loss of mass; UV spectroscopy;

D O I：

10.1016/S0969-806X(03)00094-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of the treatment with NaOH or tetramethyl ammonium hydroxide solutions on preirradiated cotton-cellulose was investigated. Both the radiation and the treatment with alkali solutions caused loss of weight in cellulose; however, there was a synergism, a high weight loss was observed during alkali treatment of preirradiated samples. The radiation caused scissions of the cellulose chains and during the treatment with aqueous alkaline solutions some smaller fragments dissolved, resulting in a strong absorbance of the solutions with maximum at around 268 nm. It was attributed to the absorbance of aldehyde/keto groups. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：505 / 508

页数：4

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