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Published on: February 25, 2011
Coniferyl alcohol reactivity at the air/water interface
Bernard Cathala1, Véronique Aguié-Béghin, Roger Douillard
1Equipe UMR FARE INRA/URCA, CREA, 2, esplanade Roland-Garros, BP 224, 51686 Reims cedex, France. cathala@reims.inra.fr
Abstract:
In order to investigate the sensitivity of the lignin monomer coupling reactions to the environment physicochemical conditions, coniferyl alcohol (CA) was polymerised at the air/water interface. Characterisation of the interface during the reaction by surface pressure measurement and ellipsometry demonstrates that the reaction occurs near or at the interface. Coupling products were analysed by HPLC and compared to reaction products obtained in the case of polymerisation in solution. Relative proportions of beta-beta and beta-O-4 dehydrodimers were found to increase in air/water interface experiment.
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