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Solvent-Assisted Fractionation of Oligomeric Cellulose and Reversible Transformation of Cellulose II and IV
Author(s) -
Xin Zhang,
Feng Jiang,
Cesar Torres-Luna,
Yoshiharu Nishiyama,
Robert M. Briber,
Howard Wang
Publication year - 2021
Publication title -
acs biomaterials science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.082
H-Index - 50
ISSN - 2373-9878
DOI - 10.1021/acsbiomaterials.1c00885
Subject(s) - dispersity , cellulose , dissolution , degree of polymerization , crystallization , solvent , polymerization , fractionation , precipitation , fraction (chemistry) , polymer chemistry , materials science , precipitation polymerization , chemistry , polymer , chemical engineering , chromatography , organic chemistry , radical polymerization , physics , meteorology , engineering
Oligomeric cellulose with an average degree of polymerization of 7.68 and a polydispersity of 1.04 has been fractionated using solution processes. Three fractions have been obtained through initial dissolution, subsequent crystallization, and solvent precipitation, respectively. The resulting oligocellulose fraction has an average degree of polymerization of 7.70 and a polydispersity of 1.01, respectively. Cellulose IV 2 crystals form in the oligocellulose fraction, and reversibly transform to II and back to IV using simple solvents.

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