Figure 4

Hemicellulose, lignin and LCC variation of hydrogen bond energies (a) between all particles (b) between just polymer chains (c) between just water molecules (d) between polymer chains and water molecules. At lower than 10% MC, while hydrogen bond between polymer chains are broken by water molecules, they are being replaced by hydrogen bonds between water molecules and polymer chains. At more than 10% MC, water molecules tend to form hydrogen bonds with other water molecules and create nano-droplets in the systems.