原子转移自由基聚合方法在纤维素及其衍生物改性方面的应用Ⅰ  

The Application of Atom Transfer Radical Polymerization at the Modification of Cellulose and its DerivativesⅠ

作　　者：韩晶[1] 程发[1] 魏玉萍[1] 

机构地区：[1]天津大学理学院化学系,天津300072

出　　处：《高分子通报》2009年第12期25-37,共13页Polymer Bulletin

基　　金：天津市自然科学基金项目资助(043602611)

摘　　要：原子转移自由基聚合反应(atomtransfer radical polymerization,ATRP)是一种活性/可控的自由基聚合反应,是大分子设计的有效工具,利用ATRP可以合成各种组成和结构的聚合物,如均聚物、嵌段共聚物、梯度共聚物、接枝共聚物、星状聚合物、超支化聚合物等。近年来,ATRP还被用于纤维素及其衍生物的修饰改性。该方法解决了传统自由基接枝改性方法中存在的问题,不仅可以保持纤维素骨架的完整性,还可以得到不包含均聚物的纯接枝共聚物,而且接枝链的长度及分子量分布均可控。本文介绍了原子转移自由基聚合方法在纤维素及其衍生物改性方面的应用。Atom transfer radical polymerization （ATRP） is living/controllable and it is an effective tool for macromolecule design. ATRP is useful for synthesizing various polymers with different compositions and structures, such as homo, block, gradient, graft, star and hyperbranched polymers. Recently, ATRP had been used for the modification of cellulose and its derivatives. By this method, the cellulose skeleton can be kept intact and pure grafting copolymers without homopolymers can be achieved. And also, the length and the molecular weight distribution of the grafting chains are both controllable. This paper reviewed the application of ATRP at the modification of cellulose and its derivatives.

关 键 词：纤维素及其衍生物 原子转移自由基聚合 本体改性 2-溴代异丁酰溴 

分 类 号：O636.11[理学—高分子化学] TQ316.322[理学—化学]