Synthesis, Structural Analysis, and Visualization of a Library of Dendronized Polyphenylacetylenes
作者:Virgil Percec、Jonathan G. Rudick、Mihai Peterca、Sasha R. Staley、Martin Wagner、Makoto Obata、Catherine M. Mitchell、Wook-Dong Cho、Venkatachalapathy S. K. Balagurusamy、James N. Lowe、Martin Glodde、Oliver Weichold、Kyung J. Chung、Nicholas Ghionni、Sergei N. Magonov、Paul A. Heiney
DOI:10.1002/chem.200600009
日期:2006.7.24
A library of eleven high cis-content cis-transoidal polyphenylacetylenes (PPAs) dendronized with self-assembling dendrons was prepared from a library of fifteen convergently synthesized macromonomers. Using [Rh(C triple bond CPh)(nbd)(PPh(3))(2)] (nbd=2,5-norbornadiene) in the presence of 10 equiv of N,N-dimethylaminopyridine, predictive control over molecular weight and narrow molecular weight distribution
从十五个聚合合成的大分子单体的文库中制备了用自组装树状体进行树状化的十一个高顺式含量的顺式-反式-聚苯乙炔(PPA)库。在10当量的N,N-二甲基氨基吡啶存在下使用[Rh(C三键CPh)(nbd)(PPh(3))(2)](nbd = 2,5-降冰片二烯),可预测地控制分子量和获得窄的分子量分布。PPA骨架充当自组装树突的螺旋支架。树突的主要结构决定了通过X射线衍射(XRD)确定的自组织六边形柱状(Phi(h))晶格以及高度有序的热解石墨(HOPG)和云母通过原子力显微镜(AFM)可视化。