Welcome to Wood Chemistry and Pulp Technology

Head of division

Professor Monica Ek, head of Wood Chemistry and Pulp Technology.

Pulp technology deals with the processes and techniques used to expose the fibers from wood. The fibers are mainly used as raw material for pulp and paper, but also other products such as the pharmaceutical industry. Wood chemistry investigate the chemical reactions that occur in these steps, as well as the morphological and chemical structure of the fibers of wood and products.

Our Research Projects Brochure.pdf (pdf 874 kB)


Water filters for refugee camps

On 21 March 2017, our division developed a portable, effective, and eco-friendly filter to deal with the drinking water safety issue in the tons of refugee camps all over the world. The wood fiber based filter can capture and kill the bacteria efficiently by a simple shake in the water, and the anti-bacteria technique has no problem with toxic chemical leaching compared with the conventional water purification methods. More information, contact Anna Ottenhall ( aott@kth.se) or Josefin Illergård( 072 - 307 24 28 / josefin.illergard@polymer.kth.se ).

1st Swedish Lignin Workshop 2017

During 16-17 March 2017, we organized the 1st Swedish Workshop on Lignin Chemistry, Processing and Valorization at RISE, Stockholm. The idea is to create a national forum for the young researchers and supervisors working within area of Lignin Chemistry research,and provide a platform to interact and cooperate. Contact: Olena Sevastyanova ( olena@kth.se) or Monica Ek ( monicaek@kth.se).


During 7-9 March 2017, our division and COST-European Cooperation in Science and Technology organized the COST Action FP1205 Conference on Cellulosic material properties and industrial potential at KTH, Stockholm, Sweden. The topic involved in Dissolution and regeneration of cellulose, Science and uses of nanocellulose,& Cellulose foams and films.

Best Poster winners in COST ACTION CONFERENCE 2017

Tiinamari Seppänen, a master student at our division, won the 1st Best Poster Prize in COST ACTION CONFERENCE 2017. Congratulations!

Biofiber Chemistry course study tour 2016

On 13 December 2016, our division organized a study tour of Biofiber Chemistry course, and we hoped the students can have the opportunity to learn about forest industry-one of Sweden’s most important base industries. 

Study visit-Tumba Papermill Museum

On 6 December 2016, we organised a study tour in Tumba Papermill Museum. Students had the chance to know about the traditional papermaking process and development of the Swedish forest industry.

Top Prize in the KTH Materials Day 2016

On 11 November 2016, Anna Ottenhall(PhD student) got the Top Prize(10,000 kr) in the PhD student pitch competition at KTH Materials Day 2016 as a result of her best performance to introduce her project-drinking water sterilization by antibacterial fibers.

 Best Poster Award in the Guangzhou Papermaking Conference 2016

On 9 November 2016,Tianxiao Huang(PhD student) won the Best Poster Award in the 5th International Symposium on Papermaking .He evaluated Hydrophobic Coating on Textile by Bark Extractives, which explored the value-added application of a side stream product from forest industry.

2nd place in Young Researchers Competition 

On 10 October 2016, Anna Ottenhall(PhD student)got the 2nd place in the Young Researchers Pitch Competition during the Marcus Wallenberg Prize 2016 Conference. She introduced an easy and cheap way to sterilize drinking water using antibacterial fibers. Learn more-abstract of her poster

Our novel nanocrystalline cellulose technique won the Entrepreneur Program

On 14 October 2016, researchers at our division won the KTH's new accelerator program for entrepreneurs - Bicky Chakraborty Entrepreneur Program, because we have developed a new process for the inexpensive and efficient production of nanocrystalline cellulose (NCC), a renewable material with application areas as reinforcement, barriers or filler in package or automotive industries. This technique contributes to a startup of the company Fine Cell . Team members: Dongfang Li, Jonathan Henschen and Monica Ek. Learn more.

American Chemical Society Conference

We participated in the 251st ACS National Meeting & Exposition in San Diego, California during March 13-17, 2016.Nicola Giummarella and Selda Aminzadeh presented their projects about lignin from wood resources. Besides, Jonatan Henschen showed his research results about anti bateria materials and demonstrated a poster “Water purification using eco-friendly antibacterial fibres”. Monica made two presentations about recent projects “Biointeractive Fibers with Antibacterial properties” and “WOBAMA Wood Based Materials”.

New PhD

On 18th March 2016, Ran BI defended her PhD thesis(Lignocellulose Biodegradation by Soil Microorganisms). Congratulations!


Recent Publications

Q. Li et al., "Influencing Factors for Alkaline Degradation of Cellulose," BioResources, vol. 12, no. 1, pp. 1263-1272, 2017.
X. Geng et al., "Bioinspired Ultrastable Lignin Cathode via Graphene Reconfiguration for Energy Storage," ACS Sustainable Chemistry and Engineering, 2017.
B. Podkościelna, M. Goliszek and O. Sevastyanova, "New approach in the application of lignin for the synthesis of hybrid materials," Pure and Applied Chemistry, vol. 89, no. 1, pp. 161-171, 2017.
C. Chen et al., "Effect of cationic polyelectrolytes in contact-active antibacterial layer-by-layer functionalization," Holzforschung, vol. 71, no. 7-8, pp. 649-658, 2017.
C. Zheng et al., "Cellulose fiber based fungal and water resistant insulation materials," International Journal of the Biology, Chemistry, Physics, and Technology of Wood, 2017.
J. Henschen et al., "Contact-active antibacterial aerogels from cellulose nanofibrils," Colloids and Surfaces B : Biointerfaces, vol. 146, pp. 415-422, 2016.
N. Giummarella et al., "Lignin Prepared by Ultrafiltration of Black Liquor : Investigation of Solubility, Viscosity, and Ash Content," BioResources, vol. 11, no. 2, pp. 3494-3510, 2016.
L. N. Samuelsson et al., "Pyrolysis of kraft pulp and black liquor precipitates derived from spruce : Thermal and kinetic analysis," Fuel processing technology, vol. 149, pp. 275-284, 2016.
R. Moriana, F. Vilaplana and M. Ek, "Cellulose Nanocrystals from Forest Residues as Reinforcing Agents for Composites : A Study from Macro- to Nano-Dimensions," Carbohydrate Polymers, vol. 139, pp. 139-149, 2016.
R. Bi, S. Huang and G. Henriksson, "ISOLATION OF EXCEEDINGLY LOW OXYGEN CONSUMING FUNGAL STRAINS ABLE TO UTILIZE LIGNIN AS CARBON SOURCE," Cellulose Chemistry and Technology, vol. 50, no. 7-8, pp. 811-817, 2016.
Y. Zhao and J. Li, "Ascidian bioresources : common and variant chemical compositions and exploitation strategy examples of Halocynthia roretzi, Styela plicata, Ascidia sp and Ciona intestinalis," Zeitschrift für Naturforschung C - A Journal of Biosciences, vol. 71, no. 5-6, pp. 165-180, 2016.
N. Giummarella et al., "Structural features of mildly fractionated lignin carbohydrate complexes (LCC) from spruce," RSC Advances, vol. 6, no. 48, pp. 42120-42131, 2016.
J. Arnling Bååth et al., "A glucuronoyl esterase from Acremonium alcalophilum cleaves native lignin-carbohydrate ester bonds," FEBS Letters, vol. 590, no. 16, pp. 2611-2618, 2016.
N. Giummarella and M. Lawoko, "Structural Basis for the Formation and Regulation of Lignin–Xylan Bonds in Birch," ACS Sustainable Chemistry & Engineering, vol. 4, no. 10, pp. 5319-5326, 2016.
M. Helander et al., "Parameters Affecting the Cross-flow Filtration of Dissolved LignoBoost Kraft Lignin," Journal of wood chemistry and technology, vol. 36, no. 1, pp. 1-8, 2015.
J. Illergård, L. Wågberg and M. Ek, "Contact-active antibacterial multilayers on fibres : a step towards understanding the antibacterial mechanism by increasing the fibre charge," Cellulose (London), vol. 22, no. 3, pp. 2023-2034, 2015.
D. Moraisde Carvalho et al., "Assessment of chemical transformations in eucalyptus, sugarcane bagasse and straw during hydrothermal, dilute acid, and alkaline pretreatments," Industrial crops and products (Print), vol. 73, pp. 118-126, 2015.
A. Svärd, E. Brännvall and U. Edlund, "Rapeseed straw as a renewable source of hemicelluloses : Extraction, characterization and film formation," Carbohydrate Polymers, vol. 133, pp. 179-186, 2015.
Y. Wang et al., "Stabilisation of polysaccharides during alkaline pretreatment of wood combined with enzyme-supported extractions in a biorefinery," Journal of wood chemistry and technology, vol. 35, no. 2, pp. 91-101, 2015.
D. Tavast, Z. Li Jansson and E. Brännvall, "Influence of spruce xylan characteristics on tensile strength of spruce kraft pulp," Holzforschung, vol. 69, no. 1, pp. 1-7, 2015.
S. Azhar et al., "Extraction of hemicelluloses from fiberized spruce wood," Carbohydrate Polymers, vol. 117, pp. 19-24, 2015.
G. Gellerstedt, "Softwood kraft lignin : Raw material for the future," Industrial crops and products (Print), vol. 77, pp. 845-854, 2015.
P. Oinonen et al., "On the formation of lignin polysaccharide networks in Norway spruce," Phytochemistry, vol. 111, pp. 177-184, 2015.
G. Gellerstedt, "Professor Gosta Brunow (1936-2013) Obituary," Holzforschung, vol. 68, no. 2, pp. 253-254, 2014.
M. A. Khan et al., "Effect of titania concentration on the grain boundary conductivity of calcium-doped ceria electrolyte," Ceramics International, vol. 40, no. 7, pp. 9775-9781, 2014.
D. Dedic et al., "Analysis of lignin and extractives in the oak wood of the 17th century warship Vasa," Holzforschung, vol. 68, no. 4, pp. 419-425, 2014.
W. Kasai, T. Morooka and M. Ek, "Mechanical properties of films made from dialcohol cellulose prepared by homogeneous periodate oxidation," Cellulose (London), vol. 21, no. 1, pp. 769-776, 2014.
M. Le Normand et al., "Hot-water extracts from the inner bark of Norway spruce with immunomodulating activities," Carbohydrate Polymers, vol. 101, no. 1, pp. 699-704, 2014.
J. D. Badia et al., "Water absorption and hydrothermal performance of PHBV/sisal biocomposites," Polymer degradation and stability, vol. 108, pp. 166-174, 2014.
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