Facile methacrylation of cellulose via alkaline aqueous esterification for thiol-ene click functionalization

被引：10
|
作者：
Chen, Heng [1 ]
Li, Rui [2 ]
Xie, Jintao [1 ]
Xu, Xiayi [2 ]
Chen, Shaojun [1 ]
机构：
[1] Shenzhen Univ, Shenzhen Key Lab Special Funct Mat, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
[2] Chinese Univ Hong Kong, Dept Biomed Engn, Shatin, Hong Kong 999077, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 245卷
基金：
中国国家自然科学基金;
关键词：
Biomaterials; Functional; Cellulose; Aqueous esterification; Thiol-ene;
D O I：
10.1016/j.matlet.2019.02.083
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this contribution, alkaline carbonates were used as catalyst to develop an one-pot approach for esterification between cellulose and methacrylate anhydrides in aqueous solution. FTIR, C-13 CP/MAS NMR and XRD analysis revealed successful esterification in amorphous domains of cellulose without affecting the cellulose crystal structure. The obtained methacrylated cellulose was amenable to further functionalization via thiol-ene click reactions. After this esterification under alkaline aqueous condition, cellulose can be easily grafted with thiolated motifs including fluorophores and bioactive peptide. Our work demonstrates an easy strategy for cellulose modification and functionalization and will greatly promote the wide-spread applications of cellulose-based materials. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：18 / 21
页数：4
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