New series of AB<sub>2</sub>-type hyperbranched polytriazoles derived from the same polymeric intermediate: Different endcapping spacers with adjustable bulk and convenient syntheses via click chemistry under copper(I) catalysis
作者:Zhong'An Li、Wenbo Wu、Guofu Qiu、Gui Yu、Yunqi Liu、Cheng Ye、Jingui Qin、Zhen Li
DOI:10.1002/pola.24625
日期:2011.5.1
“suitable isolation group,” six new AB2‐type polytriazolescontaining azo‐chromophore moieties, derived from the same hyperbranched polymer intermediate, were successfully prepared through click reaction undercopper(I) catalysis by modifying the synthetic route, in which different isolation groups in different size were introduced to the periphery of the hyperbranched polymers as end‐capping moieties. With
A series of monodisperse, well-defined, star-shaped truxene derivatives bearing oligo(fluorene ethynylene) (OFE) branches were constructed through a convergent synthetic strategy. The radius of the largest molecule TOFE4 was up to about 4.5 nm. Linear OFE branches with different length were first constructed in high yields alternately using the Sonogashira cross-coupling and propargyl alcohol deprotection