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Solvent-Assisted Fractionation of Oligomeric Cellulose and Reversible Transformation of Cellulose II and IV
ACS Biomaterials Science & Engineering ( IF 5.8 ) Pub Date : 2021-09-07 , DOI: 10.1021/acsbiomaterials.1c00885
Xin Zhang 1 , Feng Jiang 1, 2 , Cesar Torres-Luna 1 , Yoshiharu Nishiyama 3 , Robert M Briber 1 , Howard Wang 1, 4
Affiliation  

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 IV2 crystals form in the oligocellulose fraction, and reversibly transform to II and back to IV using simple solvents.

中文翻译:

低聚纤维素的溶剂辅助分馏和纤维素 II 和 IV 的可逆转化

平均聚合度为 7.68 且多分散性为 1.04 的低聚纤维素已使用溶液法进行分馏。分别通过初始溶解、随后的结晶和溶剂沉淀获得了三个级分。所得低聚纤维素级分分别具有7.70的平均聚合度和1.01的多分散性。在低聚纤维素部分中形成纤维素 IV 2晶体,并使用简单的溶剂可逆地转变为 II 并返回 IV。
更新日期:2021-10-12
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