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Smart polymers use the possible functional properties of lignin in an even higher degree of sophistication which will result in even higher value added. Lower quantities of product are necessary as these are used in small objects (micro capsules, microfilms, and downwards the scale until nano-dimensions). Domains of application of these high performance polymers are technical (thin film products like coatings with specific properties, textiles, hydrogels) but also biological (using lignin's potential for interaction with living cells). Films and coatings prepared with biopolymers have shown to be e.g. excellent oxygen, aroma and oil barriers. Furthermore such materials could display variable properties for slow release, insulation, gas barrier, fluorescence, water resistance or colour upon changes in the environment (temperature, chemical functions, pH etc.). |
Nanomaterials are expected to show the characteristics of lignin in an even more pronounced degree. As the size of the particles is reduced, the access to the functional groups will be highly increased and phase transitional states that can coexist locally in very low volumes will make possible processes that are not observable at bigger dimensions. Examples where good progresses for nanomaterials derived on biomass are preferentially expected are all aspects related to free radical scavenging (UV absorption, flame retardant etc.) and special characteristics of very thin high resistance and/or high performance coatings. The integration of nano sized particles is also expected to better integrate biomolecules in other polymer networks and create new surprising characteristics in terms of mechanic resistance, flexibility and durability. |
| Running Update |
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The simultaneous colouring and U.V. stabilisation of materials using dyed Lignin (Proceedings Reprint)
ILI Forum 5, Bordeaux 2000
E. de Jong, E. Scott, R.J.A. Gosselink, J.E.G. van Dam - Agrotechnology and Food Innovations B.V. (A&F), Wageningen, The Netherlands |
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Laccase catalysed coupling of functional molecules onto lignocellulose material (Slides)
Biorenew project, INTB Ghent 2009
G. Nyanhongo, T. Kudanga, E.N. Prasetyo, G. Guebitz- Graz University of Technology, Austria |
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Enzymatic coupling of phenolic compounds onto wood: optimization using radioisotope labelling (Proceedings Reprint)
2nd European Conference on Wood Modification, Göttingen, Germany, 2005
T. Kuncinger, T. Ters, J. Severino, E. Srebotnik - Competence Centre for Wood Composites and Wood Chemistry, Linz, Austria
M. Puchberger - Vienna University of Technology, Austria
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Enzymatic degradation of the hydrogels based on poly(vinyl alcohol) and Lignin (Poster)
Italic 5 and COST FP0602, Varenna Italy, 2009
D. Ciolacu, N. Anghel, G. Cazacu - "Petru Poni" Institute of Mactomolecular Chemistry Iasi, Romania
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Nanotechnology for fibres characterisation (Promotion Leaflet)
Free contribution 2009
V. Meyer, M. Petit-Conil - Intech Fibres, Centre Technique du Papier (CTP), Grenoble, France |
| Recent Postings |
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Enzymatic functionalisation of fibreforming polymers using Lignin substrates (Slides)
Enzymatic functionalisation of fibreforming polymers using Lignin substrates (Poster)
ILI Workshop, Zürich/Dübendorf 2008
V. Kokol, University of Maribor, Slovenia
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The role of high dispersion Lignin in creation of UV protection in textiles (Slides)
The role of high dispersion Lignin in creation of UV protection in textiles (Proceedings Reprint)
ILI Forum 8, Rome 2007
R. Kozlowski, M. Zimniewska, J. Batog, Institute of Natural Fibres, Poznan, Poland
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Lignin based controlled release coatings (Proceedings Reprint)
ILI Forum 7, Barcelona 2005
W. Mulder, R. Gosselink, M. Vingerhoeds, P. Harmsen, Agrotechnology & Food Innovations, Wageningen, The Netherlands
D. Eastham, Agrium, Carseland, Canada
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