Enzymatic graft polymerization from cellulose acetoacetate: a versatile strategy for cellulose functionalization
- PDF / 1,128,509 Bytes
- 11 Pages / 547.087 x 737.008 pts Page_size
- 77 Downloads / 190 Views
(0123456789().,-volV) (0123456789().,-volV)
ORIGINAL RESEARCH
Enzymatic graft polymerization from cellulose acetoacetate: a versatile strategy for cellulose functionalization Ruochun Wang . Liduo Rong . Shujing Ni . Qiankun Wang . Bijia Wang . Zhiping Mao . Xueling Feng . Jinying Yuan . Xiaofeng Sui
Received: 8 May 2020 / Accepted: 5 November 2020 Ó Springer Nature B.V. 2020
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 tertbutyl acetoacetate (t-BAA) and cellulose in ionic liquid. The CAA-graft-polyacrylamide (CAA-gPAM) was synthesized using a ternary initiator system consisting of CAA, HRP and hydrogen peroxide (H2O2). The results of surface-initiated
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10570-020-03577-w) contains supplementary material, which is available to authorized users. R. Wang L. Rong Key Lab of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
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.
B. Wang Z. Mao X. Feng X. Sui (&) Innovation Center for Textile Science and Technology of DHU, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, People’s Republic of China e-mail: [email protected] J. Yuan (&) Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, No.1, Tsinghua Yuan Road, Haidian District, Beijing 100084, People’s Republic of China e-mail: [email protected]
123
Cellulose
Graphic abstract Enzymatic grafting polymerization from cellulose acetoacetate
Keywords Cellulose acetoacetate Enzymatic graft polymerization Horseradish peroxidase Cellulose copolymer Grafting from
Introduction Due to the increasing demands for advanced renewable materials, modification of cellulose has been extensively exploited, in order to maximize the utilization of this renewable resource (Heinze and Liebert 2001; Kang et al. 201
Data Loading...
