The Degree of Disorder in Hardwood Kraft Pulps Studied by Means of LODP View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2005-06

AUTHORS

Helena Håkansson, Per Ahlgren, Ulf Germgård

ABSTRACT

The amount of disordered material in two types of hardwood kraft pulps was estimated by determining the weight loss at the point where the levelling-off degree of polymerisation (LODP) was reached. The pulps used were commercial pulps viz (1)one conventional birch kraft and (2)one mixed hardwood (MHW) kraft pulp that had been prehydrolysed prior to cooking. The results indicated that the hemicellulose xylan is closely associated with the cellulose in commercial birch pulps. It is therefore only possible to use LODP as a measure of the crystallite length of hardwood cellulose in highly purified pulps, such as prehydrolysed kraft pulp. A model explaining the LODP-results is proposed. More... »

PAGES

327-335

Journal

TITLE

Cellulose

ISSUE

3

VOLUME

12

Author Affiliations

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10570-004-5840-y

DOI

http://dx.doi.org/10.1007/s10570-004-5840-y

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1024378979


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