Search results for " materiali cellulosici"

La spettroscopia di risonanza magnetica nucleare in stato solido per lo studio dello stato di conservazione di materiali cellulosici

2013

This work shows the potentiality of the solid state nuclear magnetic resonance (ss-NMR) technique applied to characterize cellulosic materials and the possibility of analyze small amounts of starting material within reasonable experimental time using a modern equipment. The NMR analyses were performed to assess the conservation state of a material in order to plan appropriate conservative and restorative interventions. 13C {1H} Cross Polarization (CP) Magic Angle Spinning (MAS) NMR was used to identify the paper and wood components and the crystalline degree of the cellulose. Besides, in wood holocellulose/lignin ratio and the condensation degree of the lignin were determined.