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Published in: Cellulose 2/2021

10-11-2020 | Original Research

Enzymatic graft polymerization from cellulose acetoacetate: a versatile strategy for cellulose functionalization

Authors: Ruochun Wang, Liduo Rong, Shujing Ni, Qiankun Wang, Bijia Wang, Zhiping Mao, Xueling Feng, Jinying Yuan, Xiaofeng Sui

Published in: Cellulose | Issue 2/2021

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Abstract

A novel approach was developed to prepare cellulose acetoacetate-graft-copolymers via horseradish peroxidase (HRP)-mediated polymerization. Cellulose acetoacetate (CAA), the macroinitiator, was obtained by transesterification between tert-butyl acetoacetate (t-BAA) and cellulose in ionic liquid. The CAA-graft-polyacrylamide (CAA-g-PAM) was synthesized using a ternary initiator system consisting of CAA, HRP and hydrogen peroxide (H2O2). The results of surface-initiated polymerization showed that the formation of free polymers could be inhibited in this process. The kinetics exhibited that this method is a powerful tool for obtaining graft copolymers. The effects of H2O2 concentration and reaction temperature were investigated to explore the optimal conditions for the process of enzymatic initiation. The synthesized copolymers were characterized by FT IR, NMR, TGA and elemental analysis to confirm the successful grafting of polyacrylamide chains onto the cellulose backbones. Furthermore, generality of the HRP-mediated graft polymerization approach was demonstrated using various monomers, including 2-hydroxyethyl methacrylate (HEMA), methyl methacrylate (MMA) and sulfobetaine methacrylate (SBMA). This efficient and robust strategy has great potential in fabrication of cellulose-based functional polymers.

Graphic abstract

Enzymatic grafting polymerization from cellulose acetoacetate

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Appendix
Available only for authorised users
Literature
go back to reference Dziurka D, Turbanska D, Mirski R (2014) Ethyl acetoacetate as a formaldehyde scavenger in UF resins. For Wood Technol 85:53–56 Dziurka D, Turbanska D, Mirski R (2014) Ethyl acetoacetate as a formaldehyde scavenger in UF resins. For Wood Technol 85:53–56
Metadata
Title
Enzymatic graft polymerization from cellulose acetoacetate: a versatile strategy for cellulose functionalization
Authors
Ruochun Wang
Liduo Rong
Shujing Ni
Qiankun Wang
Bijia Wang
Zhiping Mao
Xueling Feng
Jinying Yuan
Xiaofeng Sui
Publication date
10-11-2020
Publisher
Springer Netherlands
Published in
Cellulose / Issue 2/2021
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-020-03577-w

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