Rheological properties and gelation of aqueous cellulose-NaOH solutions.

Abstract:

: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-H(2)O) 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.

journal_name

Biomacromolecules

journal_title

Biomacromolecules

authors

Roy C,Budtova T,Navard P

doi

10.1021/bm020100s

keywords:

subject

Has Abstract

pub_date

2003-03-01 00:00:00

pages

259-64

issue

2

eissn

1525-7797

issn

1526-4602

journal_volume

4

pub_type

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