Hydrophobication and characterisation of O-acetyl-galactoglucomannan for
papermaking and barrier applications

Victor Kisonen; Patrik Christoffer Eklund; Markku Auer; Rainer Sjöholm; Andrey Pranovich; Jarl Hemming; Anna Sundberg; Vladimir Aseyev; Stefan Willför

doi:10.1016/j.carres.2012.01.005

Hydrophobication and characterisation of O-acetyl-galactoglucomannan for papermaking and barrier applications

Victor Kisonen, Patrik Christoffer Eklund, Markku Auer, Rainer Sjöholm, Andrey Pranovich, Jarl Hemming, Anna Sundberg, Vladimir Aseyev, Stefan Willför

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

25 Citations (Scopus)

Abstract

Norway spruce O-acetyl-galactoglucomannans (GGM) are water-soluble hemicelluloses that have potential to be produced in large scale as a side product of the mechanical pulping industry or by hot-water extraction of wood. Chemical modification is often needed to tailor such water-soluble polysaccharides into industrially valuable compounds. In this work, treatment of GGM with butyric and benzoic anhydride in pyridine/dimethylformamide rendered GGM derivatives, which were hydrophobic and partially soluble in organic solvents. The degree of substitution can be adjusted by varying the quantity of the reagent and reaction temperature. The dn/dc value for the benzoyl ester of GGM was determined in 0.05 M LiBr DMSO in order to obtain accurate molar mass analysis with SEC-MALLS-RI. Novel substances with adjusted hydrophobicity can thus be prepared on one step synthesis from natural hemicelluloses, which then showed a slight increase in the molar mass upon esterification.

Original language	Undefined/Unknown
Pages (from-to)	151–158
Journal	Carbohydrate Research
Volume	352
DOIs	https://doi.org/10.1016/j.carres.2012.01.005
Publication status	Published - 2012
MoE publication type	A1 Journal article-refereed

Keywords

hemicelluloses
Galactoglucomannans
Hydrophobication
Esterification

Access to Document

10.1016/j.carres.2012.01.005

Cite this

@article{c496219eb3e54f8084157dfedbcddfde,

title = "Hydrophobication and characterisation of O-acetyl-galactoglucomannan for papermaking and barrier applications",

abstract = "Norway spruce O-acetyl-galactoglucomannans (GGM) are water-soluble hemicelluloses that have potential to be produced in large scale as a side product of the mechanical pulping industry or by hot-water extraction of wood. Chemical modification is often needed to tailor such water-soluble polysaccharides into industrially valuable compounds. In this work, treatment of GGM with butyric and benzoic anhydride in pyridine/dimethylformamide rendered GGM derivatives, which were hydrophobic and partially soluble in organic solvents. The degree of substitution can be adjusted by varying the quantity of the reagent and reaction temperature. The dn/dc value for the benzoyl ester of GGM was determined in 0.05 M LiBr DMSO in order to obtain accurate molar mass analysis with SEC-MALLS-RI. Novel substances with adjusted hydrophobicity can thus be prepared on one step synthesis from natural hemicelluloses, which then showed a slight increase in the molar mass upon esterification.",

keywords = "hemicelluloses, Galactoglucomannans, Hydrophobication, Esterification, hemicelluloses, Galactoglucomannans, Hydrophobication, Esterification, hemicelluloses, Galactoglucomannans, Hydrophobication, Esterification",

author = "Victor Kisonen and Eklund, {Patrik Christoffer} and Markku Auer and Rainer Sj{\"o}holm and Andrey Pranovich and Jarl Hemming and Anna Sundberg and Vladimir Aseyev and Stefan Willf{\"o}r",

year = "2012",

doi = "10.1016/j.carres.2012.01.005",

language = "Odefinierat/ok{\"a}nt",

volume = "352",

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journal = "Carbohydrate Research",

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publisher = "Elsevier",

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TY - JOUR

T1 - Hydrophobication and characterisation of O-acetyl-galactoglucomannan for papermaking and barrier applications

AU - Kisonen, Victor

AU - Eklund, Patrik Christoffer

AU - Auer, Markku

AU - Sjöholm, Rainer

AU - Pranovich, Andrey

AU - Hemming, Jarl

AU - Sundberg, Anna

AU - Aseyev, Vladimir

AU - Willför, Stefan

PY - 2012

Y1 - 2012

N2 - Norway spruce O-acetyl-galactoglucomannans (GGM) are water-soluble hemicelluloses that have potential to be produced in large scale as a side product of the mechanical pulping industry or by hot-water extraction of wood. Chemical modification is often needed to tailor such water-soluble polysaccharides into industrially valuable compounds. In this work, treatment of GGM with butyric and benzoic anhydride in pyridine/dimethylformamide rendered GGM derivatives, which were hydrophobic and partially soluble in organic solvents. The degree of substitution can be adjusted by varying the quantity of the reagent and reaction temperature. The dn/dc value for the benzoyl ester of GGM was determined in 0.05 M LiBr DMSO in order to obtain accurate molar mass analysis with SEC-MALLS-RI. Novel substances with adjusted hydrophobicity can thus be prepared on one step synthesis from natural hemicelluloses, which then showed a slight increase in the molar mass upon esterification.

AB - Norway spruce O-acetyl-galactoglucomannans (GGM) are water-soluble hemicelluloses that have potential to be produced in large scale as a side product of the mechanical pulping industry or by hot-water extraction of wood. Chemical modification is often needed to tailor such water-soluble polysaccharides into industrially valuable compounds. In this work, treatment of GGM with butyric and benzoic anhydride in pyridine/dimethylformamide rendered GGM derivatives, which were hydrophobic and partially soluble in organic solvents. The degree of substitution can be adjusted by varying the quantity of the reagent and reaction temperature. The dn/dc value for the benzoyl ester of GGM was determined in 0.05 M LiBr DMSO in order to obtain accurate molar mass analysis with SEC-MALLS-RI. Novel substances with adjusted hydrophobicity can thus be prepared on one step synthesis from natural hemicelluloses, which then showed a slight increase in the molar mass upon esterification.

KW - hemicelluloses

KW - Galactoglucomannans

KW - Hydrophobication

KW - Esterification

KW - hemicelluloses

KW - Galactoglucomannans

KW - Hydrophobication

KW - Esterification

KW - hemicelluloses

KW - Galactoglucomannans

KW - Hydrophobication

KW - Esterification

U2 - 10.1016/j.carres.2012.01.005

DO - 10.1016/j.carres.2012.01.005

M3 - Artikel

SN - 0008-6215

VL - 352

SP - 151

EP - 158

JO - Carbohydrate Research

JF - Carbohydrate Research

ER -