期刊
CARBOHYDRATE RESEARCH
卷 520, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2022.108630
关键词
Cellulose; Dual modification; DMSO/DBU/CO2 ??????? systems
资金
- National Natural Science Foundation of China [21978310]
- Science and Technology Service Network Plan [KFJ-STS-QYZD-2021-16-002]
- China Academy of Sciences [174433KYSB20190082]
- Ningbo Public Welfare Science and Technology Plan [2021S020]
- Ningbo Natural Science Foundation [2021J196]
In this study, an easy and effective method for synthesizing dual-functionalized cellulose derivatives with processability and fluorescence functionality under mild conditions was established. The synthesized derivatives exhibited good fluorescent response and were used as functional additives to prepare cast films with excellent mechanical properties. The cast films also demonstrated the ability to detect pH values.
An easy and effective way to synthesize dual-functionalized cellulose derivatives with processability and fluorescence functionality by one-pot modification of successive esterification and carbonation under mild condition is established with the use of DMSO/DBU/CO2 system. Accordingly, four kinds of dual-functionalized cellulose derivatives with rather good fluorescent response are obtained. After blending the synthesized dual-functionalized cellulose derivative with cellulose acetate as functional additive in solution, cast film with the elastic modulus, stress and strain reaches to 2.2 GPa, 34.1 MPa and 5.7% is prepared. Besides, the cast film also exhibits the ability to detect the pH value at 12-14 with detection accuracy of 0.4 through the change of fluorescent color. This research shows a simple but effective way to prepare dual-functionalized cellulose derivatives for the high-quality applications in field of detection.
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