Models of cellulose physical structure from the viewpoint of the cellulose I → II transition

✍ Scribed by Hans-Peter Fink; Burkart Philipp

• Publisher: John Wiley and Sons
• Year: 1985
• Tongue: English
• Weight: 699 KB
• Volume: 30
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1985.070300918

✦ Synopsis

Supermolecular structure of linters cellulose at the cellulose 1-11 phase transition is investigated by wide-angle X-ray scattering (quantitative phase analysis, degree of crystallinity by the method of Ruland and Vonk, and lateral crystallite sizes via peak separation by Pearson VII functions). A survey of models of cellulose structure recently discussed in literature is given. The compatibility of these models with the obtained WAXS results is checked. As a conclusion, some of the models especially the parallel-antiparallel transition of chain arrangement are outruled and a nonuniform fringed fibrillar model in connection with a conformation transition from bent to bent and twisted single chain conformation is preferred.