Abstract:

Cellulose has many disadvantages，such as poor thermal stability，poor chemical stability，hydrophilicity，vulnerability to bacterial and microbial action，so chemical modifications of cellulose are necessary to overcome these disadvantages. The application and recent progress of surface modification of cellulose via atom transfer radical polymerization（ATRP）are review. Surface modification of cellulose via ATRP is proposed，to give cellulose various functionalities，such as hydrophobic，antibacterial and stimuli-responsive properties by grafting different functional monomers onto the surface of cellulose via ATRP，and improving the interfacial compatibility between fibers and matrix via ATRP. In addition，the advantages of ARGET ATRP（activators regenerated by electron transfer ATRP）is introduced，such as the amount of copper can be significantly reduced，the reaction can be conducted in the presence of limited air and the cellulose substrates are basically colorless after washing. These advantages will facilitate its industrial application in modification of cellulose.

摘要：

由于纤维素具有热稳定性差、化学稳定性差、易吸水、易受菌虫和微生物侵害等缺点，有必要对其进行化学改性处理。本文简述了原子转移自由基聚合（atom transfer radical polymerization，ATRP）方法在纤维素表面改性方面的应用情况及最新研究进展。综述了利用ATRP方法对纤维素表面进行改性的方法，利用ATRP方法在纤维素表面接枝不同功能性单体，赋予纤维素表面疏水性、抗菌性和刺激-响应性等多种功能性的研究概况及利用ATRP方法对天然纤维表面进行表面疏水、抗菌等功能改性以及在改善复合材料中纤维与基体间界面相容性方面的应用。最后，还介绍了ARGET ATRP（activators regenerated by electron transfer ATRP）方法由于具有大量减少铜用量，允许少量空气存在而且改性后纤维素易清洗等优点，有利于在纤维素改性工业中的推广应用。