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Wang Z, Zhang L, Feng J, Tang P, Chen S, Yu H, Hu Y, Wang Z, Jiang F. Ultra-stretchable chitin-based branched elastomers with enhanced mechanical properties via RAFT polymerization. Carbohydr Polym 2022; 288:119381. [PMID: 35450643 DOI: 10.1016/j.carbpol.2022.119381] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/08/2022] [Accepted: 03/17/2022] [Indexed: 01/08/2023]
Abstract
In this work, a chitin-based macromolecular chain transfer agent (Chitin-CTA) was designed to graft polymers from chitin at the molecular level. Homogeneous reversible addition-fragmentation chain transfer (RAFT) polymerization was performed to prepare branched MA elastomers, chitin-graft-poly(methyl acrylate) (Chitin-g-PMA) copolymers, which were thermally stable and showed tunable glass transition temperatures. These ultra-stretchable branched MA elastomers exhibit unique strain-hardening behavior and significantly enhanced mechanical properties. Mechanical tests indicate that the chitin backbones in branched MA elastomers can act as cross-linking points to improve the tensile strength, toughness, and elasticity simultaneously. The macroscopic performance of branched MA elastomers c be further promoted by introducing hydrogen bonding as non-covalent interaction to form an additional reversible physical network. This robust and versatile grafting strategy can provide new opportunities to prepare chitin-based branched MA elastomers with extraordinary mechanical properties.
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Affiliation(s)
- Zhiqiang Wang
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Lujun Zhang
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Jiajun Feng
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Pengfei Tang
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Shuaishuai Chen
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Hanqing Yu
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yueyao Hu
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Zhongkai Wang
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China.
| | - Feng Jiang
- Biomass Molecular Engineering Center, Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China.
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Li X, Li D, Lv P, Hu J, Feng Q, Wei Q. Immobilization of laccase onto modified PU/RC nanofiber via atom transfer radical polymerization method and application in removal of bisphenol A. Eng Life Sci 2020; 19:815-824. [PMID: 32624974 PMCID: PMC6999588 DOI: 10.1002/elsc.201900075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 07/27/2019] [Accepted: 09/18/2019] [Indexed: 12/07/2022] Open
Abstract
In this study, 2-hydroxyethyl methacrylate (HEMA) was used as the monomers for surface grafting on electrospun PU/RC nanofiber membrane via atom transfer radical polymerization (ATRP) method, and the PU/RC-poly(HEMA) nanofiber membrane was investigated as a carrier for LAC. Free and immobilized LAC was characterized, and efficiency of bisphenol A (BPA) removal was determined. The results indicated that the PU/RC-poly(HEMA)-LAC showed relatively higher pH stability, temperature stability, and storage stability than free and PU/RC-LAC; moreover, more than 60% of the PU/RC-poly(HEMA)-LAC activity was retained after 10 cycles of ABTS treatment. Notably, the BPA removal efficiency of PU/RC-poly(HEMA)-LAC membrane generally ranged from 87.3 to 75.4% for the five cycles. Therefore, the PU/RC-poly(HEMA) nanofiber membrane has great potential as a carrier for the LAC immobilization for various industrial applications and bioremediation.
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Affiliation(s)
- Xin Li
- Key Laboratory of Eco-Textiles, Ministry of Education Jiangnan University Jiangsu Province Wuxi P. R. China
| | - Dawei Li
- Key Laboratory of Eco-Textiles, Ministry of Education Jiangnan University Jiangsu Province Wuxi P. R. China
| | - Pengfei Lv
- Key Laboratory of Eco-Textiles, Ministry of Education Jiangnan University Jiangsu Province Wuxi P. R. China
| | - Jinyan Hu
- Key Laboratory of Textile Fabric Anhui Polytechnic University Wuhu Anhui P. R. China
| | - Quan Feng
- Key Laboratory of Textile Fabric Anhui Polytechnic University Wuhu Anhui P. R. China
| | - Qufu Wei
- Key Laboratory of Eco-Textiles, Ministry of Education Jiangnan University Jiangsu Province Wuxi P. R. China.,Fujian Key Laboratory of Novel Functional Textile Fiber and Materials Minjiang University Fuzhou Fujian P. R. China
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Kadokawa JI, Obama Y, Yoshida J, Yamamoto K. Gel Formation from Self-assembled Chitin Nanofiber Film by Grafting of Poly(2-methyl-2-oxazoline). CHEM LETT 2018. [DOI: 10.1246/cl.180285] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jun-ichi Kadokawa
- Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Yu Obama
- Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Junpei Yoshida
- Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Kazuya Yamamoto
- Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
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