An Integrated Approach for Added-Value Products from Lignocellulosic Biorefineries Vanillin, Syringaldehyde, Polyphenols and Polyurethane - Rodrigues, Alírio Egídio; Rodrigues, Alírio Egídio; Pinto, Paula Cristina de Oliveira Rodrigues; Barreiro, Maria Filomena; Esteves da Costa, Carina Andreia; Ferreira da Mota, Maria Inês; Fernandes, Isabel (Springer International Publishing : Imprint: Springer, 2018)