Rheological properties and gelation of aqueous cellulose-NaOH solutions

被引：123

作者：

Roy, C

Budtova, T

Navard, P

机构：

[1] Ecole Mines, Cemef, Ctr Mise Forme Mat, CNRS,UMR 7635, F-06904 Sophia Antipolis, France

[2] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia

[3] Ctr Rech, Spontex, F-60026 Beauvais, France

来源：

BIOMACROMOLECULES | 2003年 / 4卷 / 02期

关键词：

D O I：

10.1021/bm020100s

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

The shear rheology of a microcrystalline cellulose dissolved in a 9% NaOH aqueous solution was studied in the steady and oscillatory modes. The cellulose-(9% NaOH-H2O) mixtures show not to be true solutions. In the dilute regime, with cellulose concentration below 1%, the rheological behavior is typical of the one of suspensions. The formation of cellulose aggregates is favored when temperature is increased. In the semidilute regime, an irreversible aggregate-based gelation occurs, being faster with increasing temperature.

引用

页码：259 / 264

页数：6

共 29 条

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