Fatty acid derivatives of cellulose for barrier applications

Sara Labafzadeh, Tuomas P. S. Kulomaa, Riku A. Talja, Lasse E. Kyllönen, Alistair W. T. King, Kristiina Poppius-Levlin, Ilkka Kilpeläinen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

Birch kraft pulp has been tested for its appropriateness to be transformed into cellulose films by acylation in homogenous media (LiCl/DMAc) with two saturated fatty acid chlorides containing a chain of 10 and 16 carbon atoms. The FTIR spectra of the cellulose esters with 6 equivalents of acyl chlorides represent a significant decrease on the intensity of hydroxyl groups indicating that a number of OH groups were replaced. Novel 31P-NMR method was carried out to determine degree of substitution. The highest DS value (2.6) was obtained from the cellulose esters modified by palmitoyl chloride with a mole ratio af acylating agent to anhydroglucose units (AGU) of 6. The resultant esters were converted to films and hydrophobicity of the materials was determined. The water vapor transmission rate (WVTR) decreased with increasing chain length of the substituent, while water contact angle increased.
Original languageEnglish
Title of host publicationThe 3rd Nordic Wood Biorefinery Conference, NWBC 2011, Stockholm, Sweden, 22 - 24 March 2011
Place of PublicationStockholm, Sweden
Pages250-252
Publication statusPublished - 2011
MoE publication typeB3 Non-refereed article in conference proceedings
Event3rd Nordic Wood Biorefinery Conference, NWBC 2011 - Stockholm, Sweden
Duration: 22 Mar 201124 Mar 2011
http://www.innventia.com/PageFiles/11935/NWBC_2011_Program_orals.pdf (Programme)
http://www.innventia.com/PageFiles/11935/NWBC_2011_Program_posters.pdf (Posters)

Conference

Conference3rd Nordic Wood Biorefinery Conference, NWBC 2011
CountrySweden
CityStockholm
Period22/03/1124/03/11
Internet address

Fingerprint

Cellulose
Esters
Fatty Acids
Derivatives
Chlorides
Cellulose films
Acylation
Kraft pulp
Steam
Hydrophobicity
Chain length
Hydroxyl Radical
Contact angle
Substitution reactions
Carbon
Nuclear magnetic resonance
Atoms
Water
palmitoyl chloride

Cite this

Labafzadeh, S., Kulomaa, T. P. S., Talja, R. A., Kyllönen, L. E., King, A. W. T., Poppius-Levlin, K., & Kilpeläinen, I. (2011). Fatty acid derivatives of cellulose for barrier applications. In The 3rd Nordic Wood Biorefinery Conference, NWBC 2011, Stockholm, Sweden, 22 - 24 March 2011 (pp. 250-252). Stockholm, Sweden.
Labafzadeh, Sara ; Kulomaa, Tuomas P. S. ; Talja, Riku A. ; Kyllönen, Lasse E. ; King, Alistair W. T. ; Poppius-Levlin, Kristiina ; Kilpeläinen, Ilkka. / Fatty acid derivatives of cellulose for barrier applications. The 3rd Nordic Wood Biorefinery Conference, NWBC 2011, Stockholm, Sweden, 22 - 24 March 2011. Stockholm, Sweden, 2011. pp. 250-252
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author = "Sara Labafzadeh and Kulomaa, {Tuomas P. S.} and Talja, {Riku A.} and Kyll{\"o}nen, {Lasse E.} and King, {Alistair W. T.} and Kristiina Poppius-Levlin and Ilkka Kilpel{\"a}inen",
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Labafzadeh, S, Kulomaa, TPS, Talja, RA, Kyllönen, LE, King, AWT, Poppius-Levlin, K & Kilpeläinen, I 2011, Fatty acid derivatives of cellulose for barrier applications. in The 3rd Nordic Wood Biorefinery Conference, NWBC 2011, Stockholm, Sweden, 22 - 24 March 2011. Stockholm, Sweden, pp. 250-252, 3rd Nordic Wood Biorefinery Conference, NWBC 2011, Stockholm, Sweden, 22/03/11.

Fatty acid derivatives of cellulose for barrier applications. / Labafzadeh, Sara; Kulomaa, Tuomas P. S.; Talja, Riku A.; Kyllönen, Lasse E.; King, Alistair W. T.; Poppius-Levlin, Kristiina; Kilpeläinen, Ilkka.

The 3rd Nordic Wood Biorefinery Conference, NWBC 2011, Stockholm, Sweden, 22 - 24 March 2011. Stockholm, Sweden, 2011. p. 250-252.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

TY - GEN

T1 - Fatty acid derivatives of cellulose for barrier applications

AU - Labafzadeh, Sara

AU - Kulomaa, Tuomas P. S.

AU - Talja, Riku A.

AU - Kyllönen, Lasse E.

AU - King, Alistair W. T.

AU - Poppius-Levlin, Kristiina

AU - Kilpeläinen, Ilkka

N1 - Project code: 38366 - 7.2 FuBio

PY - 2011

Y1 - 2011

N2 - Birch kraft pulp has been tested for its appropriateness to be transformed into cellulose films by acylation in homogenous media (LiCl/DMAc) with two saturated fatty acid chlorides containing a chain of 10 and 16 carbon atoms. The FTIR spectra of the cellulose esters with 6 equivalents of acyl chlorides represent a significant decrease on the intensity of hydroxyl groups indicating that a number of OH groups were replaced. Novel 31P-NMR method was carried out to determine degree of substitution. The highest DS value (2.6) was obtained from the cellulose esters modified by palmitoyl chloride with a mole ratio af acylating agent to anhydroglucose units (AGU) of 6. The resultant esters were converted to films and hydrophobicity of the materials was determined. The water vapor transmission rate (WVTR) decreased with increasing chain length of the substituent, while water contact angle increased.

AB - Birch kraft pulp has been tested for its appropriateness to be transformed into cellulose films by acylation in homogenous media (LiCl/DMAc) with two saturated fatty acid chlorides containing a chain of 10 and 16 carbon atoms. The FTIR spectra of the cellulose esters with 6 equivalents of acyl chlorides represent a significant decrease on the intensity of hydroxyl groups indicating that a number of OH groups were replaced. Novel 31P-NMR method was carried out to determine degree of substitution. The highest DS value (2.6) was obtained from the cellulose esters modified by palmitoyl chloride with a mole ratio af acylating agent to anhydroglucose units (AGU) of 6. The resultant esters were converted to films and hydrophobicity of the materials was determined. The water vapor transmission rate (WVTR) decreased with increasing chain length of the substituent, while water contact angle increased.

M3 - Conference article in proceedings

SN - 978-91-86018-17-7

SP - 250

EP - 252

BT - The 3rd Nordic Wood Biorefinery Conference, NWBC 2011, Stockholm, Sweden, 22 - 24 March 2011

CY - Stockholm, Sweden

ER -

Labafzadeh S, Kulomaa TPS, Talja RA, Kyllönen LE, King AWT, Poppius-Levlin K et al. Fatty acid derivatives of cellulose for barrier applications. In The 3rd Nordic Wood Biorefinery Conference, NWBC 2011, Stockholm, Sweden, 22 - 24 March 2011. Stockholm, Sweden. 2011. p. 250-252