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Citation: Wei Chen, Qin Bin, Zheng-wu Bai, Xing-ping Zhou, Xiao-lin Xie. PARTIAL CARBAMOYLATION OF CELLULOSE MICROSPHERES：A NEW METHOD TO PREPARE ADSORBENTS FOR LIQUID CHROMATOGRAPHY[J]. Chinese Journal of Polymer Science, ;2013, 31(12): 1725-1732. doi: 10.1007/s10118-013-1312-x shu

PARTIAL CARBAMOYLATION OF CELLULOSE MICROSPHERES：A NEW METHOD TO PREPARE ADSORBENTS FOR LIQUID CHROMATOGRAPHY

Wei Chen ^1,2,3 ,
Qin Bin ⁴ ,
Zheng-wu Bai ⁴ ,
Xing-ping Zhou ⁵ ,
Xiao-lin Xie ⁵

1.
1. Key Lab for Large-Format Battery Materials and Systems, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
2.
2. Key Lab of Green Chemical Process, Ministry of Education, Hubei Key Laboratory of Novel Chemical Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430073, China
3.
4.
Key Lab of Green Chemical Process, Ministry of Education, Hubei Key Laboratory of Novel Chemical Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430073, China
5.
Key Lab for Large-Format Battery Materials and Systems, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Received Date: 27 February 2013
Revised Date: 20 April 2013

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 50973086 and 51273073) and Hubei Provincial Department of Education of China (Z 20081501).

Micron-sized cellulose microspheres were prepared through sol-gel method using NaOH/urea solution to dissolve cellulose, then cross-linked by 1,6-hexanylene diisocyanate (HDI), toluene 2,4-diisocyanate (TDI) and 1,4-phenylene diisocyanate (PDI), respectively. The reaction conditions for partial modification of the microspheres were studied. The degree of substitution (DS) in cellulose was controlled by adjusting the reaction conditions. HDI-crosslinked microspheres were partially modified with phenyl isocyanate to obtain chiral stationary phases (CSPs). The CSPs of a lower degree of crosslinking (DC) showed better chiral recognition ability than those of a higher DC. Meanwhile the CSPs prepared by pre-modification exhibited better chiral recognition ability than those prepared by pre-crosslinking.
- Cellulose,
- Microspheres,
- Functionalization,
- Chiral stationary phase,
- Chiral recognition
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