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Guo Y, Guo G, Liu P, You Y, Yuan J, Hu G, Dai L, North M, Xie H, Zheng Q. The synthesis of multifunctional cellulose graft alternating copolymers of 3,4-dihydrocoumarin and epoxides in DBU/DMSO/CO 2 solvent system. Int J Biol Macromol 2023; 252:126584. [PMID: 37648137 DOI: 10.1016/j.ijbiomac.2023.126584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 08/15/2023] [Accepted: 08/27/2023] [Indexed: 09/01/2023]
Abstract
Cellulose graft copolymers having well-defined structures could incorporate the characteristics of both the cellulose skeleton and side chains, providing a new method for the preparation functionalised cellulose derivatives. Herein, a series of multifunctional cellulose grafted, alternating 3,4-dihydrocoumarin (DHC) and epoxide (EPO) copolymers (cell-g-P(DHC-alt-EPO)) were prepared in a metal-free DBU/DMSO/CO2 solvent system without adding additional catalyst. Four examples of cell-g-P(DHC-alt-EPO) with tunable thermal and optical properties were synthesized by copolymerization of DHC with styrene oxide (SO), propylene oxide (PO), cyclohexene oxide (CHO) or furfuryl glycidyl ether (FGE) onto cellulose. The nonconjugated cell-g-P(DHC-alt-EPO) showed UV absorption properties with the maximum absorption peak at 282 nm and 295 nm and photoluminescence performance. A clustering-triggered emission mechanism was confirmed and consistent with DFT theoretical calculations. In DMSO solution, the copolymer (DHCSO5) with DP of 11.64 showed ACQ behaviour as the concentration increased. In addition, DHCSO5 had good antioxidant capacity with an instantaneous radical scavenging activity of 2,2-diphenyl-1-picrylhydrazine (DPPH) up to 65 % at a concentration of 40 mg/ ml and increased to 100 % after 30 min. Thus, the multifunctional cell-g-P(DHC-alt-EPO) materials had a variety of potential applications in the fields of fluorescent printing, bio-imaging, UV- shielding and antioxidants.
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Affiliation(s)
- Yuanlong Guo
- Department of Polymeric Materials & Engineering, Guizhou University, West Campus, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Gu Guo
- Department of Polymeric Materials & Engineering, Guizhou University, West Campus, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Pengcheng Liu
- Department of Polymeric Materials & Engineering, Guizhou University, West Campus, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Yang You
- Department of Polymeric Materials & Engineering, Guizhou University, West Campus, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Jili Yuan
- Department of Polymeric Materials & Engineering, Guizhou University, West Campus, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Gang Hu
- Department of Polymeric Materials & Engineering, Guizhou University, West Campus, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Lei Dai
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, PR China
| | - Michael North
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, York YO10 5DD, UK
| | - Haibo Xie
- Department of Polymeric Materials & Engineering, Guizhou University, West Campus, Guizhou University, Huaxi District, Guiyang 550025, PR China.
| | - Qiang Zheng
- Taiyuan University of Technology, Wanbolin District, Taiyuan 030024, PR China.
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