Lignin is an abundant raw material with large potential use in future material applications.1 It is one of the largest sources of aromatic structures found in nature and has the possibility to provide suitable properties for thermoset material applications. Derivatization of lignin compounds provides a toolbox for further modification, compatibilization and polymerization. One route of derivatization of lignins described in literature is allylation of lignin using allyl bromide2 or Diallyl Carbonate3. Allylation of hydroxyl groups on lignin structures opens up for a variety of different further possibilities, e.g. allylated lignin can be considered as a resin platform. Selective modification of well defined, low molecular weight, lignin model compounds through allylation has been studied. Coniferyl alcohol has been used as a model compound and been modified through allylation resulting in monomers for the use as thermoset building blocks. The effect of different reaction conditions on the allylation process is elaborated. 1. Gellerstedt, G.; Henriksson, G., Chapter 9 - Lignins: Major Sources, Structure and Properties. In Monomers, Polymers and Composites from Renewable Resources, Gandini, M. N. B., Ed. Elsevier: Amsterdam, 2008; pp 201-224. 2. Zoia, L.; Salanti, A.; Frigerio, P.; Orlandi, M., Exploring Allylation and Claisen Rearrangement as a Novel Chemical Modification of Lignin. BioResources 2014, 9 (4). 3. Over, L. C.; Meier, M. A. R., Sustainable allylation of organosolv lignin with diallyl carbonate and detailed structural characterization of modified lignin. Green Chemistry, Published online, DOI : 10.1039/c5gc01882j, 2015.

Modification of low molecular weight lignin model compounds for thermoset resin applications

251st National Meeting (2016)

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