A CP/MAS 13C-NMR study of cellulose structure on the surface of refined kraft pulp fibers

Eva Lena Hult; Tiina Liitiä; Sirkka Liisa Maunu; Bo Hortling; Tommy Iversen

doi:10.1016/S0144-8617(01)00309-5

A CP/MAS ¹³C-NMR study of cellulose structure on the surface of refined kraft pulp fibers

Eva Lena Hult (Corresponding Author), Tiina Liitiä, Sirkka Liisa Maunu, Bo Hortling, Tommy Iversen

Not published at VTT

Research output: Contribution to journal › Article › Scientific › peer-review

36 Citations (Scopus)

Abstract

The average lateral fibril aggregate dimensions and the crystallinity of the cellulose in a spruce kraft pulp were analysed by CP/MAS ¹³C-NMR spectroscopy in combination with spectral fitting. The average lateral fibril and lateral fibril aggregate dimensions were calculated from quantitative spectra of pure cellulose isolated from kraft pulps. Results showed that cellulose isolated by acid hydrolysis and chlorite-delignification from fines fraction enriched in surface material and long fiber fractions enriched in bulk material exhibited no major difference in either lateral dimension or crystallinity index.

Original language	English
Pages (from-to)	231-234
Number of pages	4
Journal	Carbohydrate Polymers
Volume	49
Issue number	2
DOIs	https://doi.org/10.1016/S0144-8617(01)00309-5
Publication status	Published - 1 Aug 2002
MoE publication type	Not Eligible

Keywords

Cellulose
CP/MAS C-NMR
Fiber surface
Kraft pulp
Supermolecular structure

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abstract = "The average lateral fibril aggregate dimensions and the crystallinity of the cellulose in a spruce kraft pulp were analysed by CP/MAS 13C-NMR spectroscopy in combination with spectral fitting. The average lateral fibril and lateral fibril aggregate dimensions were calculated from quantitative spectra of pure cellulose isolated from kraft pulps. Results showed that cellulose isolated by acid hydrolysis and chlorite-delignification from fines fraction enriched in surface material and long fiber fractions enriched in bulk material exhibited no major difference in either lateral dimension or crystallinity index.",

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AU - Hult, Eva Lena

AU - Liitiä, Tiina

AU - Maunu, Sirkka Liisa

AU - Hortling, Bo

AU - Iversen, Tommy

PY - 2002/8/1

Y1 - 2002/8/1

N2 - The average lateral fibril aggregate dimensions and the crystallinity of the cellulose in a spruce kraft pulp were analysed by CP/MAS 13C-NMR spectroscopy in combination with spectral fitting. The average lateral fibril and lateral fibril aggregate dimensions were calculated from quantitative spectra of pure cellulose isolated from kraft pulps. Results showed that cellulose isolated by acid hydrolysis and chlorite-delignification from fines fraction enriched in surface material and long fiber fractions enriched in bulk material exhibited no major difference in either lateral dimension or crystallinity index.

AB - The average lateral fibril aggregate dimensions and the crystallinity of the cellulose in a spruce kraft pulp were analysed by CP/MAS 13C-NMR spectroscopy in combination with spectral fitting. The average lateral fibril and lateral fibril aggregate dimensions were calculated from quantitative spectra of pure cellulose isolated from kraft pulps. Results showed that cellulose isolated by acid hydrolysis and chlorite-delignification from fines fraction enriched in surface material and long fiber fractions enriched in bulk material exhibited no major difference in either lateral dimension or crystallinity index.

KW - Cellulose

KW - CP/MAS C-NMR

KW - Fiber surface

KW - Kraft pulp

KW - Supermolecular structure

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JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

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