路易斯酸促进的 2-氯噻吩的链式增长聚合。
Chain-growth polymerization of 2-chlorothiophenes promoted by Lewis acids.
机构信息
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
出版信息
J Am Chem Soc. 2012 Nov 21;134(46):18916-9. doi: 10.1021/ja308498h. Epub 2012 Nov 9.
PMID:23137337
Abstract
Lewis acids promote the polymerization of several 2-chloroalkylenedioxythiophenes, providing high-molecular-weight conjugated polymers. The proposed mechanism is a cationic chain-growth polymerization, as confirmed by end-capping reactions and a linear correlation of molecular weight with percent conversion. The "living" character of this process was used to prepare new block copolymers.
摘要
路易斯酸促进了几种 2-氯烷基二氧噻吩的聚合，提供了高分子量的共轭聚合物。所提出的机理是阳离子链式聚合，这一点通过封端反应和分子量与转化率的线性关系得到了证实。该过程的“活性”特征被用于制备新型嵌段共聚物。
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