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Polymers 2016, 8(11), 396; doi:10.3390/polym8110396

Sustainable Phenolic Fractions as Basis for Furfuryl Alcohol-Based Co-Polymers and Their Use as Wood Adhesives

Department Forest Product Technology & Timber Construction, Salzburg University of Applied Sciences, 5431 Kuchl, Austria
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Academic Editor: Antonio Pizzi
Received: 12 September 2016 / Revised: 28 October 2016 / Accepted: 7 November 2016 / Published: 14 November 2016
(This article belongs to the Special Issue Renewable Polymeric Adhesives)
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Abstract

Furfuryl alcohol is a very interesting green molecule used in the production of biopolymers. In the present paper, the copolymerization in acid environment with natural, easily-available, phenolic derivatives is investigated. The processes of polymerization of the furfuryl alcohol with: (i) spent-liquor from the pulping industry and (ii) commercial tannin from acacia mimosa were investigated though viscometry and IR-spectroscopy. The curing kinetics of the formulations highlighted the importance of the amount of furfuryl alcohol and catalyst as well as the effect of temperature for both phenolic-furanic polymers. Evidence of covalent copolymerization has been observed through infrared spectrometry (FT-IR) combined with principal component analysis (PCA) and confirmed with additional solubility tests. These bio-based formulations were applied as adhesives for solid wood and particleboards with interesting results: at 180 °C, the spent-liquor furanic formulations allow wood bonding slightly with lower performance than PVA in dry conditions, while mixed formulations allow the gluing of particleboard with only satisfactory internal bonding tests. View Full-Text
Keywords: tannin; lignin; adhesive; furanic; poly-furfuryl alcohol; copolymer; multivariate data analysis; wood bonding; panels tannin; lignin; adhesive; furanic; poly-furfuryl alcohol; copolymer; multivariate data analysis; wood bonding; panels
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Luckeneder, P.; Gavino, J.; Kuchernig, R.; Petutschnigg, A.; Tondi, G. Sustainable Phenolic Fractions as Basis for Furfuryl Alcohol-Based Co-Polymers and Their Use as Wood Adhesives. Polymers 2016, 8, 396.

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