Synthesis of cellulose graft cyclic anhydride and epoxide alternating copolyesters in a DBU/ DMSO/CO₂ solvent system

TY - JOUR

T1 - Synthesis of cellulose graft cyclic anhydride and epoxide alternating copolyesters in a DBU/ DMSO/CO2 solvent system

AU - Guo, Gu

AU - Guo, Yuanlong

AU - Sheng, Hailiang

AU - Liu, Pengcheng

AU - Dai, Lei

AU - North, Michael

AU - Deng, Lei

AU - Luo, Xiaofeng

AU - Xie, Haibo

N1 - Funding Information: This work was financially supported through the National Natural Science Foundation of China ( 22275041 ; 21774028 ; 21574030 ); Science and Technology Department of Guizhou Province ( Natural Science Key Fund ZK [2021]023 ; Platform & Talents [2016]5652 , [2017]5788 , [2018]5781 , and [2019]5607) . I nnovation Funds of Kezhijie New Materials Group (Guizhou) Co., Ltd ( LETSGrp2020042402 ). Funding Information: This work was financially supported through the National Natural Science Foundation of China (22275041; 21774028; 21574030); Science and Technology Department of Guizhou Province (Natural Science Key Fund ZK [2021]023; Platform & Talents [2016]5652, [2017]5788, [2018]5781, and [2019]5607). Innovation Funds of Kezhijie New Materials Group (Guizhou) Co. Ltd (LETSGrp2020042402). Publisher Copyright: © 2023 Elsevier B.V.

PY - 2023/11/15

Y1 - 2023/11/15

N2 - A series of cellulose grafted alternating cyclic anhydride (CA) and epoxide (EPO) copolyesters (cell-g-P(CA-alt-EPO)) have been prepared in the novel DBU/DMSO/CO2 cellulose solvent system. The DBU acted both as a reagent for cellulose dissolution and as a catalyst for ring-opening copolymerization (ROCOP) of cellulose with EPO and CA. The structural features and thermal performances of cell-g-P(CA-alt-EPO) were characterized via MALDI-TOF, FT-IR NMR, TGA, DSC and XPS. Perfectly alternating sequence distributions and controlled molecular weights of a series of cell-g-P(CA-alt-EPO) were easily achieved by a variation of the CA or EPO. The cell-g-P(CA-alt-EPO) also had satisfactory UV-absorbing properties and cellulose grafted phthalic anhydride and glycidyltrimethylammonium chloride exhibited outstanding antibacterial behavior. Antibacterial activity against Escherichia coli and Staphylococcus aureus were 96.7% and 99.4% respectively. Thus, cell-g-P(CA-alt-EPO) with good solubility, melt processability, UV absorption and antibacterial properties have potential applications in UV-shielding and antibacterial agent fields.

AB - A series of cellulose grafted alternating cyclic anhydride (CA) and epoxide (EPO) copolyesters (cell-g-P(CA-alt-EPO)) have been prepared in the novel DBU/DMSO/CO2 cellulose solvent system. The DBU acted both as a reagent for cellulose dissolution and as a catalyst for ring-opening copolymerization (ROCOP) of cellulose with EPO and CA. The structural features and thermal performances of cell-g-P(CA-alt-EPO) were characterized via MALDI-TOF, FT-IR NMR, TGA, DSC and XPS. Perfectly alternating sequence distributions and controlled molecular weights of a series of cell-g-P(CA-alt-EPO) were easily achieved by a variation of the CA or EPO. The cell-g-P(CA-alt-EPO) also had satisfactory UV-absorbing properties and cellulose grafted phthalic anhydride and glycidyltrimethylammonium chloride exhibited outstanding antibacterial behavior. Antibacterial activity against Escherichia coli and Staphylococcus aureus were 96.7% and 99.4% respectively. Thus, cell-g-P(CA-alt-EPO) with good solubility, melt processability, UV absorption and antibacterial properties have potential applications in UV-shielding and antibacterial agent fields.

KW - Antibacterial properties

KW - Cellulose grafted copolyesters

KW - Green solvents

KW - Orgnocatalysis

KW - Ring-opening copolymerization

UR - http://www.scopus.com/inward/record.url?scp=85169804454&partnerID=8YFLogxK

U2 - 10.1016/j.indcrop.2023.117413

DO - 10.1016/j.indcrop.2023.117413

M3 - Article

AN - SCOPUS:85169804454

SN - 0926-6690

VL - 204

JO - INDUSTRIAL CROPS AND PRODUCTS

JF - INDUSTRIAL CROPS AND PRODUCTS

M1 - 117413

ER -