Fan Weijia, Nakamura Yasuyuki, Yamago Shigeru
Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.
Chemistry. 2016 Nov 14;22(47):17006-17010. doi: 10.1002/chem.201603682. Epub 2016 Oct 13.
Functionalized or multivalent organotellurium chain-transfer agents (CTAs) for living radical polymerization were synthesized by post-modification, which involved the condensation between a carboxylic-acid-functionalized CTA and various amines in excellent yields without affecting the reactive tellurium moiety. The CTAs exhibited high synthetic versatility for radical polymerization and gave structurally well-controlled polymers, such as multiarmed polymers, from various monomers. Because all new CTAs are easily available on a large scale by simple purification, the current method significantly facilitates macromolecular engineering based on organotellurium-mediated radical polymerization (TERP).
通过后修饰合成了用于活性自由基聚合的功能化或多价有机碲链转移剂（CTA），该过程涉及羧酸功能化CTA与各种胺之间的缩合反应，产率极高，且不影响碲反应基团。这些CTA在自由基聚合中表现出高度的合成通用性，并能从各种单体得到结构可控的聚合物，如多臂聚合物。由于所有新的CTA通过简单纯化即可大规模轻松获得，因此该方法极大地促进了基于有机碲介导的自由基聚合（TERP）的大分子工程。
