Ultrafast Cyclopolymerization for Polyene Synthesis: Living Polymerization to Dendronized Polymers
作者:Eun-Hye Kang、In Sun Lee、Tae-Lim Choi
DOI:10.1021/ja204309d
日期:2011.8.10
produced conjugated polymers having a five-membered-ring structure with excellent molecular weight control and narrow polydispersity index (PDI). This living polymerization allowed us to prepare fully conjugated diblock copolymers with narrow PDIs. Lastly, this catalyst was active enough to polymerize macromonomers with G-3 dendrons in a living manner as well. This dendronized polymer with a highly regioregular
我们发现,使用第三代格拉布斯催化剂,1,6-庚二炔衍生物的超快环聚合可在 1 分钟内完成。经过优化,这种优异的催化剂选择性地生产了具有五元环结构的共轭聚合物,具有出色的分子量控制和窄多分散指数 (PDI)。这种活性聚合使我们能够制备具有窄 PDI 的完全共轭二嵌段共聚物。最后,这种催化剂的活性足以使大分子单体与 G-3 树突以活性方式聚合。这种具有高度区域规整聚合物主链和庞大树枝的树枝状聚合物通过原子力显微镜观察,揭示了被绝缘树枝包围的单分子线的结构。