Sumários
Seminar: Bio-refinery_Concepts, Ideas and industrial projects
14 Novembro 2025, 11:15 • José Afonso Rodrigues Graça
Seminar NAVIGATOR/Alexandre Gaspar:
Pulp and Paper Industry – a bio-based industry
Wood polysaccharides – Technical materials
13 Novembro 2025, 11:15 • José Afonso Rodrigues Graça
Polysaccharide-based materials and products
Cellulose esters: nitrocellulose
Cellulose acetates and materials made of
Cellulose ethers and materials made of
Cellulose nanocrystals, nanofibers and hydrogels
Cellulose textile fibers: Viscose Rayon
Hemicelluloses saccharafication: fermentable sugars
Enzymatic hydrolysis of polysaccharides
Furans from hemicelluloses
Wood polysaccharides - Structure
7 Novembro 2025, 11:15 • José Afonso Rodrigues Graça
Polysaccharides as the main constituents of wood and biomass
Polysaccharides building units: sugars (monosaccharides)
Asymmetric carbons and configuration in sugars
Sugars in the cyclic form: pyranose and furanose rings
Conformation and energy stability
Cellulose: linearly linked b-D-Glucopyranose units
Hemicelluloses: small chain, branched polysaccharides
Xylans in Hardwoods and Glucomannans in Softwoods
The cellulose crystal
Cellulose organization in wood cell walls: microfibrils
Orientation of microfibrils in wood cell walls
Miderm test
6 Novembro 2025, 11:15 • José Afonso Rodrigues Graça
Midterm test on wood and fiber-based materials, including wood composites and engineered wood products
Wood and wood-based composites and materials – Review (2/2)
24 Outubro 2025, 11:15 • José Afonso Rodrigues Graça
Wood and wood-based composites and materials – Review, questions and study topics (2/2)