A comprehensive investigation on cellulose nanocrystals with different crystal structures from cotton via an efficient route

Chengling Huang; Houyong Yu; Somia Yassin Hussain Abdalkarim; Yingzhan Li; Xiang Chen; Xiaogang Yang; Ying Zhou; Lianyang Zhang

doi:10.1016/j.carbpol.2021.118766

A comprehensive investigation on cellulose nanocrystals with different crystal structures from cotton via an efficient route

Carbohydr Polym. 2022 Jan 15:276:118766. doi: 10.1016/j.carbpol.2021.118766. Epub 2021 Oct 16.

Authors

Chengling Huang¹, Houyong Yu², Somia Yassin Hussain Abdalkarim¹, Yingzhan Li³, Xiang Chen¹, Xiaogang Yang¹, Ying Zhou¹, Lianyang Zhang⁴

Affiliations

¹ Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China.
² Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China. Electronic address: [email protected].
³ Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China. Electronic address: [email protected].
⁴ Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing University, Shaoxing 312000, China.

PMID: 34823786
DOI: 10.1016/j.carbpol.2021.118766

Abstract

The crystal structures of cellulose nanomaterials play an important role in their morphologies and applications, however, there was still lacking systematic research on preparing various crystalline allomorphs of cellulose nanocrystals with high thermal stability. Herein, the efficient synthesis route was presented to design various crystalline allomorphs of cellulose from cotton. And then, cellulose nanocrystals with different crystal structures (CNC-I, CNC-II, CNC-III_II, CNC-IV_II) were prepared by hydrogen peroxide hydrolysis of resultant cellulose. Overall, needle-like CNC-I (length of 180 ± 25 nm, diameter of 12 ± 2 nm), near-spherical CNC-II (diameter of 101 ± 12 nm), and spherical CNC-III_II (diameter of 22 ± 3 nm) and CNC-IV_II (diameter of 21 ± 2 nm) all exhibited remarkable dispersibility and thermal stability (T_max > 357 °C). This work provides a simple and low-cost synthesis route for various crystalline allomorphs of CNCs with high thermal stability from the same raw materials (cotton).

Keywords: Cellulose nanocrystals; Morphology; Polymorph; Thermal stability.