Issue Date: April 23, 2012
Origins Of Paper Discoloration
Cellulose oxidation takes the blame for the unsightly yellowing of ancient paper, according to a study published in Physical Review Letters that identifies some of the key functional groups responsible for the discoloration (DOI: 10.1103/PhysRevLett.108.158301). By weight, ancient paper typically consists of more than 90% cellulose, which is made up of crystalline bundles of polysaccharide chains, each of which is built from hundreds to . . .
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