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作 者:胡亮[1] 张超灿[1] 陈艳军[1] 胡园园[1]
机构地区:[1]武汉理工大学材料科学与工程学院高分子材料工程系,武汉430070
出 处:《材料导报》2011年第9期68-72,共5页Materials Reports
基 金:国家自然科学基金资助项目(50673080)
摘 要:电子转移生成催化剂原子转移自由聚合(AGET ATRP)和电子转移再生催化剂原子转移自由基聚合(ARGET ATRP)是两种新型的原子转移自由基聚合体系,它们不仅克服了传统原子转移自由基聚合体系(NormalATRP)中低价态过渡金属催化剂容易氧化、用量大、后处理困难等问题,而且在制备嵌段共聚物的过程中不会生成均聚物,可以进行本体、溶液、细乳液聚合,尤其是使电子转移再生催化剂原子转移自由基聚合体系中催化剂浓度降到10×10-6,对原子转移自由基聚合的工业化应用产生了深远影响。综述了这两种原子转移自由基聚合的最新研究进展,包括目前适用于该引发体系的单体、引发剂、过渡金属络合物、配体和还原剂,展望了原子转移自由基聚合的发展。Two novel ATRP systems, activators generated by electron transfer atom transfer radical polymerization (AGET ATRP) and activators regenerated by electron transfer atom transfer radical polymerization (ARGET ATRP), are proposed subsequently in recent years and used in bulk, solution, miniemulsion polymerization. Both AGET ATRP and ARGET ATRP not only solve the problem that transition metal catalyst is readily oxidized and using a high catalyst amount results in tremendous difficulties in removal of catalyst as well as truly environmentally malignance in normal ATRP, but also overcome the formation of small amounts of homoplymers in the preparation of block copolymers. In addition, the concentration of catalyst is significantly decreased to approximate 10 ppm, therefore ARGET ATRP must have a profound impact on the ATRP in industrial relevant development. The common mo- nomers (i. e. , styrenes, acrylates, methacrylates), initiators, transition-metal complexes (i. e. , Cu and Fe) and li- gands used in both novel ATRP systems and some polymer materials made by them are reviewed in details, respectively. At last, the prospect of the development of ATRP is provided.
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