基于ATRP接枝改性木质素的研究进展

Research Progress of Grafting Modified Lignin Based on ATRP

木质素是仅次于纤维素的第二大可再生生物质资源,也是一种环境友好的有机高分子材料.原子转移自由基聚合(atom transfer radical polymerization,ATRP)是近年来迅速发展并有着重要应用价值的一种"活性"/可控自由基聚合技术.本文结合本课题组目前的研究工作和近几年的相关报道,简述了ATRP在木质素接枝共聚方面的最新研究进展.综述了采用ATRP对木质素接枝共聚改性的方法,并采用该方法在木质素表面接枝不同功能性单体,赋予木质素表面温敏性、离子响应性、气体开关和基因传递等多种特殊性能的研究概况.最后介绍了AGET ATRP(activators generated by electron transfer ATRP)在木质素接枝共聚反应中的应用.

Lignin, surpassed only by cellulose, is the second most abundant renewable biomass. It is also a kind of environmentally friendly organic polymer materials. Atom transfer radical polymerization （ATRP） is a kind of ＂living＂ /controlled free radical polymerization technology which has been developed rapidly in recent years with important applications. The latest research progress of ATRP in grafting copolymerization of lignin was summarized. The surface modification of lignin via ATRP is proposed to give lignin various functionalities, such as thermosensitive, ionic-responsive, gas-switchability and gene delivery by grafting copolymerization of different functional monomers onto the surface of lignin. At last, the application of AGET ATRP （ activators generated by electron transfer ATRP） in the grafting copolymerization of lignin is introduced.