13C CPMAS NMR investigations of cellulose polymorphs in different pulps

Sirkka Maunu; Tiina Liitiä; Seppo Kauliomäki; Bo Hortling; Jorma Sundquist

doi:10.1023/A:1009200609482

¹³C CPMAS NMR investigations of cellulose polymorphs in different pulps

Sirkka Maunu, Tiina Liitiä, Seppo Kauliomäki, Bo Hortling, Jorma Sundquist

Not published at VTT

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Abstract

In order to obtain information about the crystallinity and polymorphs of cellulose, and the occurrence of hemicelluloses in pulp fibers, wood cellulose, bacterial cellulose, cotton linters, viscose, and celluloses in different pulps were investigated by solid state ¹³C CPMAS NMR spectroscopy. A mixed softwood kraft pulp and a dissolving-grade pulp were treated under strongly alkaline and acidic conditions and the effect on cellulose crystallinity was studied. The presence of different crystalline polymorphs of cellulose and the amounts of hemicelluloses are considered.

Original language	English
Pages (from-to)	147-159
Number of pages	13
Journal	Cellulose
Volume	7
Issue number	2
DOIs	https://doi.org/10.1023/A:1009200609482
Publication status	Published - 1 Jan 2000
MoE publication type	Not Eligible

Keywords

C CPMAS NMR
Cellulose
Crystallinity
Parchmentising
Polymorphs

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abstract = "In order to obtain information about the crystallinity and polymorphs of cellulose, and the occurrence of hemicelluloses in pulp fibers, wood cellulose, bacterial cellulose, cotton linters, viscose, and celluloses in different pulps were investigated by solid state 13C CPMAS NMR spectroscopy. A mixed softwood kraft pulp and a dissolving-grade pulp were treated under strongly alkaline and acidic conditions and the effect on cellulose crystallinity was studied. The presence of different crystalline polymorphs of cellulose and the amounts of hemicelluloses are considered.",

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AU - Maunu, Sirkka

AU - Liitiä, Tiina

AU - Kauliomäki, Seppo

AU - Hortling, Bo

AU - Sundquist, Jorma

PY - 2000/1/1

Y1 - 2000/1/1

N2 - In order to obtain information about the crystallinity and polymorphs of cellulose, and the occurrence of hemicelluloses in pulp fibers, wood cellulose, bacterial cellulose, cotton linters, viscose, and celluloses in different pulps were investigated by solid state 13C CPMAS NMR spectroscopy. A mixed softwood kraft pulp and a dissolving-grade pulp were treated under strongly alkaline and acidic conditions and the effect on cellulose crystallinity was studied. The presence of different crystalline polymorphs of cellulose and the amounts of hemicelluloses are considered.

AB - In order to obtain information about the crystallinity and polymorphs of cellulose, and the occurrence of hemicelluloses in pulp fibers, wood cellulose, bacterial cellulose, cotton linters, viscose, and celluloses in different pulps were investigated by solid state 13C CPMAS NMR spectroscopy. A mixed softwood kraft pulp and a dissolving-grade pulp were treated under strongly alkaline and acidic conditions and the effect on cellulose crystallinity was studied. The presence of different crystalline polymorphs of cellulose and the amounts of hemicelluloses are considered.

KW - C CPMAS NMR

KW - Cellulose

KW - Crystallinity

KW - Parchmentising

KW - Polymorphs

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VL - 7

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JO - Cellulose

JF - Cellulose

IS - 2

ER -

¹³C CPMAS NMR investigations of cellulose polymorphs in different pulps

Abstract

Keywords

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