156016-23-8Relevant academic research and scientific papers
Dipole-Switchable Poly(para-phenyleneethynylene)s: Ferroelectric Conjugated Polymers
Kushida, Soh,Smarsly, Emanuel,Bojanowski, N. Maximilian,Wacker, Irene,Schr?der, Rasmus R.,Oki, Osamu,Yamamoto, Yohei,Melzer, Christian,Bunz, Uwe H. F.
, p. 17019 - 17022 (2018)
Dipolar 2,3-difluorobenzene units are introduced into the backbone of a poly(para-phenyleneethynylene) (PPE) to generate a ferroelectric conjugated polymer. The structural features of the partially fluorinated PPE allow for the generation of a remanent polarization in the solid state; the difluorinated benzene rings behave as molecular rotors at high temperature, while at room temperature, stacking of such rings clamps down the ring orientation. The molecular dipoles can still be oriented by moderate external electrical fields at room temperature, and this PPE is then ferroelectric. The concept should be transferable to other poly(aryleneethynylene)s, and novel conjugated ferroelectric conjugated polymers will be accessible using this concept.
Synthesis and optical characterisation of platinum(II) poly-yne polymers incorporating substituted 1,4-diethynylbenzene derivatives and an investigation of the intermolecular interactions in the diethynylbenzene molecular precursors
Khan, Muhammad S.,Al-Mandhary, Muna R. A.,Al-Suti, Mohammed K.,Corcoran, Timothy C.,Al-Mahrooqi, Yaqoub,Attfield, J. Paul,Feeder, Neil,David, William I. F.,Shankland, Kenneth,Friend, Richard H.,Koehler, Anna,Marseglia, Elisabeth A.,Tedesco, Emilio,Tang, Chiu C.,Raithby, Paul R.,Collings, Jonathan C.,Roscoe, Karl P.,Batsanov, Andrei S.,Stimson, Lorna M.,Marder, Todd B.
, p. 140 - 149 (2007/10/03)
A series of 1,4-diethynylbenzene (1) derivatives, H-C≡C-R-C≡C-H with R = C6H3NH2 (2), C6H3F (3), C6H2F2-2,5 (4), C6F4 (5), C6H2/
