Change search
ReferencesLink to record
Permanent link

Direct link
Biomimetic synthesis of suberin for new biomaterials
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
KTH, School of Chemical Science and Engineering (CHE).
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0003-3201-5138
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0002-2900-4713
2005 (English)In: Appita Annual Conference: Vol 2, 2005, 561-564 p.Conference paper (Refereed)
Abstract [en]

Suberin is the biopolymer giving cork (oak bark) its hydrophobic and resistant characteristics. It acts as a diffusion barrier in bark and roots of plants. Similarly to lignin, it is a phenolic polymer with good affinity to cellulose and other wood polysaccharides, but it also contains polyaliphatic and strongly hydrophobic elements. In order to produce a lignin derivative similar to suberin, a desired lignin starting material should be of low molecular weight and have a high content of hydroxylic phenolic groups. By means of cross flow nanofiltration of softwood kraft pulping black liquor and pH-precipitation with diluted sulphuric acid, such a lignin has been obtained. Due to the fact that too much organics entering the recovery boiler frequently is the bottleneck for pulp production increases, a removal of part of the lignin can be economically very favourable. By using this lignin together with linola oil, a linseed oil with a large amount of unsaturated structures, an attempt was made to create a new hydrophobic lignin derivative similar tosuberin. The product was analysed with FT-IR, Fourier Transformed Infra Red Spectroscopy and GPC, Gel Permeation Chromatography. The suberin like material obtained from this lignin could be polymerised on thermo mechanical pulp fibres by means of Mn(III)-driven phenolic coupling. The ability of the suberin monomers to act as a hydrophobic paper coating was evaluated with contact angle measurements and the results indicate that this lignin derivative was potentially of interest due to its capability to interact well with wood fibres and make paper hydrophobic.

Place, publisher, year, edition, pages
2005. 561-564 p.
Keyword [en]
Biomaterials, Biomimetic materials, Biopolymers, Polysaccharides, Synthesis (chemical), Wood products
National Category
Engineering and Technology
Research subject
SRA - Production
URN: urn:nbn:se:kth:diva-76159ScopusID: 2-s2.0-29344438017OAI: diva2:490918
ISSN: 14435454 Document Type: Conference Paper Source Type: Conference Proceeding 59th Appita Annual Conference and Exhibition, incorporating the 13th ISWFPC: International Symposium on Wood, Fibre and Pulping Chemistry, Auckland, 16 May 2005 through 19 May 2005
XPRES - Initiative for excellence in production research
QC 20120229Available from: 2012-02-06 Created: 2012-02-06 Last updated: 2012-02-29Bibliographically approved

Open Access in DiVA

No full text


Search in DiVA

By author/editor
Antonsson, StefanHenriksson, GunnarJohansson, MatsLindström, Mikael
By organisation
Fibre and Polymer TechnologySchool of Chemical Science and Engineering (CHE)
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 173 hits
ReferencesLink to record
Permanent link

Direct link