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Preparation and thermostability of hydrophobic modified nanocrystalline cellulose

  • Junliang Lu , Jinyan Lang , Na Wang , Xinhui Wang , Ping Lan and Heng Zhang ORCID logo EMAIL logo
Published/Copyright: December 23, 2020
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Abstract

In this paper, we provide a new approach for the anionic modification and functional application of nanocellulose. The nanocrystalline cellulose (NCC) is prepared from microcrystalline cellulose (MCC) and modified by fatty acids (lauric acid, palmitic acid and stearic acid). Ammonium ceric sulfate or hydrogen peroxide/ferrous sulfate being used as an initiator, three kinds of modified nanocrystalline cellulose (MNCC) can be synthesized at low temperature. The terminology for these MNCC is L-MNCC (NCC modified by lauric acid), P-MNCC (NCC modified by palmitic acid) and S-MNCC (NCC modified by stearic acid). Compared with those existing synthesized methods, the reaction condition is mild, and the modified products show strong stability. It can be seen from morphological structure analysis and reaction conditions analysis of MNCC that the original structure of cellulose is changed slightly. And the optimal conditions for preparing MNCC are obtained. The best yields of L-MNCC, P-MNCC and S-MNCC are 54.2 %, 20.9 % and 14.5 %, respectively.

Award Identifier / Grant number: ZR2017MC032

Funding source: Zhejiang University

Award Identifier / Grant number: 2018BCE005

Funding statement: This work was supported by the Shandong Provincial Natural Science Foundation of China (Grant No. ZR2017MC032), the Open Fund of Guangxi Key Laboratory of Polysaccharide Materials and Modification (Grant No. GXPSMM18YB-03), the Open Fund of State Key Laboratory Base of Eco-Chemical Engineering (Grant No. KF1706), the Shandong Provincial Key Research and Development Program (SPKR&DP) (Grant No. 2019GGX102029) and the Foundation of Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University (Grant No. 2018BCE005).

  1. Conflict of interest: The authors declare no conflicts of interest.

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Received: 2020-06-01
Accepted: 2020-09-26
Published Online: 2020-12-23
Published in Print: 2021-03-26

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