J. Chorbacher, J. Klopf, A. Friedrich, M. Fest, J. S. Schneider, B. Engels, H. Helten, Regioregular Poly(p-phenylene iminoborane): A Strictly Alternating BN-Isostere of Poly(p-phenylene vinylene) with Stimuli-Responsive Behavior,Angew. Chem. Int. Ed.2024, e202416088.