Microwave-accelerated synthesis of lengthy and defect-free poly(m-phenyleneethynylene)s via AB? and A2 + BB? polycondensation routesElectronic supplementary information (ESI) available: monomer syntheses, polycondensation procedures, and polymer characterization. See http://www.rsc.org/suppdata/cc/b3/b312762a/
Towards Photocontrol over the Helix–Coil Transition in Foldamers: Synthesis and Photoresponsive Behavior of Azobenzene-Core Amphiphilic Oligo(meta-phenylene ethynylene)s
作者:Anzar Khan、Stefan Hecht
DOI:10.1002/chem.200501564
日期:2006.6.14
Introduction of photochromic azobenzene units into amphiphilicoligo(meta-phenylene ethynylene)s allowed photocontrol over the helix-coil transition in this important class of foldamers. Two design principles were followed in efforts to accommodate cis- and trans-azobenzene moieties within the helical structure to selectively turn the helical state on and off, respectively. Several oligomer series