原子转移自由基聚合引发体系的最新研究进展

本文介绍了关于原子转移自由基聚合（ATRP）引发-活化-失活过程的最新研究情况，包括RATRP、SR&NI ATRP、AGET ATRP、ARGET ATRP以及ICAR ATRP等新型ATRP引发体系。这些新型ATRP体系逐渐克服了通常ATRP体系的局限性，尤其是后两种体系仅需微量（1～50 ppm）价态稳定的过渡金属络合物调控聚合，大大简化了ATRP方法的工业化生产程序；本文同时介绍了杂化及双金属ATRP催化体系，这两种新型催化体系具有较高的催化活性和对聚合反应的调控能力，而且通过简单地过滤或沉降就可从聚合产物当中脱除。

Recent Developments of the Initiation System of Atom Transfer Radical Polymerizatio

Novel methods of fine tuning initiation, activation, and deactivation processes for atom transfer radical polymerization (ATRP) are reviewed, including reverse ATRP, simultaneous reverse and normal initiation (SR&NI) ATRP, activators generated by electron transfer (AGET) ATRP, activators regenerated by electron transfer (ARGET) ATRP and initiators for continuous activator regeneration (ICAR) ATRP, which gradually overcome the limitations of normal ATRP methods, especially the latter two methods whereby only small amount of high-oxidation-state transition metal complex is needed to mediate polymerization and therefore greatly simplify the commercial procedures. In addition, two novel catalyst systems, hybrid and bimetallic catalyst systems developed on the basis of immobilized catalyst, are thoroughly introduced, which show high catalytic activity and control capability to polymerization and can be removed mostly by simple filtration or precipitation.