The association of water to cellulose and hemicellulose in paper examined by FTIR spectroscopy

被引：297

作者：

Olsson, AM ^{[1
]}

Salmén, L ^{[1
]}

机构：

[1] Swedish Pulp & Paper Res Inst, STFI, SE-11486 Stockholm, Sweden

来源：

CARBOHYDRATE RESEARCH | 2004年 / 339卷 / 04期

关键词：

D O I：

10.1016/j.carres.2004.01.005

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The nature of water sorption to different materials has always been a complex matter to address, partly due to the different possibilities of hydrogen-bond formation. For cellulosic materials this is extremely important for its product performance. In order to gain a deeper understanding of the moisture adsorption mechanisms of cellulose and hemicelluloses, the molecular interaction between moisture and paper and between moisture and some wood polymers was studied using FTIR spectroscopy under stable humid conditions. It was found that all the moisture-sorbing sites adsorbed moisture to the same relative degree, and that the rate of adsorption was the same for all these sites. It was also noticed that the moisture is adsorbed in the form of clusters. A direct relationship was found between the moisture weight gain and the increase in the absorbance peaks for humidities up to 50% relative humidity after which the moisture gain increased faster, a fact that still remains to be explained. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：813 / 818

页数：6

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