Untangling the threads of cellulose mercerization

Abstract

During mercerization, cellulose undergoes a conversion from form I to form II which involves change of the direction of every other cellulose chain but a clear understanding of how this change happens is lacking. Here, the authors use neutron diffraction on deuterium labelled cellulose to demonstrate that chains fold back on themselves in a zigzag pattern to form crystalline anti-parallel domains.